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Page 1: Discovery Center Annual Report 2016discoverycenter.nbi.ku.dk/.../annualreport2016.pdf · In 2016 the Large Hadron Collider experiment at the European Centre for Nuclear Physics (CERN)

Discovery CenterAnnual Report 2016

Page 2: Discovery Center Annual Report 2016discoverycenter.nbi.ku.dk/.../annualreport2016.pdf · In 2016 the Large Hadron Collider experiment at the European Centre for Nuclear Physics (CERN)

TABLE OF CONTENTS

A Year of Harvest 2

News from the Discovery Atlas Group 4

Developments in the Effective Field Theory Workgroup 6

Discoveries in Techniques of Scattering Amplitudes 8

Hints towards a reformulation of Quantum Field Theories 9

News from Alice 10

The Icecube Discovery Group 13

Cosmology Close and Afar 14

Search for Hidden Particles 17

Defended Msc Theses in 2016 19

Seminars, workshops and courses 20

Discovery Center financing 20

Discovery Center people 21

Scientific staff 21

PhD students 21

MSc students 22

Discovery associates 23

Discovery scientific advisory board 23

Visitors 24

Discovery publications 2016 25

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| DISCOVERY CENTER FOR PARTICLE PHYSICS2

A YEAR OF HARVEST

In 2016 the LHC machine surpassed its design pa-rameters and allowed the ATLAS experiment to col-lected more data than in all previous years together. One merciless result of the increased statistics was the evaporation of the hints of anomalies that caused so much excitement in 2015. Alas, they turned out to be statistical fluctuations. Another merciless conse-quence was a murderously high density of particles in the detector from (up to) 50 proton collisions per 25 nanoseconds. This stretched the ATLAS detector to its very limits and required continued new ideas to compress data, speed up processing and find new

computing resources. However, the increased statis-tics also offered new opportunities for the Discovery LHC group to search for ever more rare events, such as instances of lepton flavor non-conservation, as well as new opportunities for precision measurements of the Standard Model parameters.

We also had a chance to analyze the data taken in December 2015 with the ALICE detector where lead ions collided at the monstrous total energy of one Peta electron volt. This analysis confirmed previous indica-tions that the quark-gluon state of matter, dominat-ing the universe up to the age of one millionth of a second, was close to being an “ideal fluid” with mini-

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ANNUAL REPORT 2016 | 3

mal viscosity. In a special run at the end of 2016, Pb nuclei were collided with single protons and we hope that these data will shed new light on the controver-sial question of whether “small systems” of quarks and gluons exhibit collective behavior.

For the Discovery phenomenology group it was of course a bit disappointing that all the hints of new resonances disappeared in the sharp light of the 2016 LHC statistics. However, their approach of pressing the maximal information out of the combined preci-sion measurements using effective field theories has gained world wide interest, as evidenced by the high attendance at our “Higgs Effective Field Theories 2016” conference.

Meanwhile, the scattering amplitude group made gi-ant strides. Anyone who has tried to make just a “one-loop correction” to an amplitude knows how compli-cated it is (I never succeeded doing it, which is why I am an experimental physicist). However, this year our amplitude group reached the unprecedented 8- and even 10-loop calculation, which is about 2.7 million times more complicated than the one-loop problem. Hereby the Discovery center has really become a champion of precision quantum field calculations.

Members of the Discovery IceCube group were physi-cally at the South Pole this year (photographic proof

can be found in this report) and the on-line diary from one of these trips was a big outreach hit. The group also made great progress in the data analysis, setting new competitive limits on both dark matter annihila-tion in the Milky Way and on the parameters of pos-sible extra neutrinos outside the Standard Model.

Such extra, “sterile”, neutrinos are also the main target of a new theoretical and experimental research effort led by Discovery member Oleg Rychayskiy. In 2016 he shared an ERC Advanced Grant, called NuBSM, with M. Shaposhnikov, Lausanne, and A. Boyarsky, Leiden.

Sterile neutrinos are hypothetical particles that poten-tially could explain the mystery of Dark Matter. An-other, even more intractable, mystery is the so-called Dark Energy that apparently fills out empty space and accelerates the expansion of the universe. However, in a remarkable analysis from 2016 Niels Bohr Profes-sor Subir Sarkar and Discovery student Jeppe Trøst Nielsen pointed out that certain empirical evidence for Dark Energy is weaker than previously assumed. I hope you will enjoy reading more about these in-triguing developments in the following.

January 2017Peter HansenDirector of the Discovery Center

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| DISCOVERY CENTER FOR PARTICLE PHYSICS4

NEWS FROM THE DISCOVERY

For the ATLAS experiment the year 2016 was what a special vintage is to vinification. The LHC exceeded its own record for the amount of data delivered in a single year, and did so at the highest beam energy, thus producing big gains in the two key ingredients for making new discoveries. The torrent of data made running ATLAS a challenge, but it was overcome, leaving us with more data than was harvested in the period between 2009-2015. We, in the Discovery Center, have been working on several analyses of this data, both related to exploring the fundamental laws of physics and ingredients of the Universe, but also on keeping the experiment running optimally.

We have been a keystone in the running of the Tran-sition Radiation Tracker (TRT), ensuring optimal tracking, electron identification and minimizing computing resources. We have also been contributing to the continued upkeep of the trigger that ensures that we can observe tau leptons, which play a central role for many reasons.

We have been involved in two prominent measure-ments, namely that of the top mass (using a new and

Control region

Control region

Signal region

Collision events that contain both a candidate tau and muon, taken from the 2016 data. The transverse mass of each lepton combined with the other hadronic activity in each event is shown divided into background regions (blue boxes) and the potential sig-nal region in which new physics may be found (red box).

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ANNUAL REPORT 2016 | 5

very promising method) and of the W mass, which is considered to be the hardest analysis in all of LHC.

In the search for new particles and phenomena we are involved in a several of the leading ATLAS analyses. We contribute to the search for new heavy Higgs par-ticles, which is also a field we explore together with the theorists in the Discovery Center. The prospect is either finding additional Higgs particles, or possibly excluding the current main theory of how matter in today’s Universe came into existence.

We also explore the possibility that one of the fun-damental rules, that of lepton flavour conservation, might not be exact. This is done by looking for de-

The distribution of the proton transverse momentum difference, t, measured by the ALFA sub-detector, 240 metres down the beam-line from the main ATLAS detector. This plot includes the detection efficiency of ALFA for both data and simulation, which is an impor-tant component of measuring the total interaction rate at the LHC.

2− 1.5− 1− 0.5− 0 0.5 1 1.5 2

[1/T

eV]

δ

0.15−

0.1−

0.05−

0

0.05

0.1

0.15

E/p method + global sagittaµµ→Z

Combined

ATLAS Preliminary-1 = 7 TeV, 4.1 fbs

The dependence of the measured muon momentum calibration on the angle at which it is emitted. The method shown here was pioneered by the Discovery Centre and uses the ATLAS data itself to measure the momentum calibration to better than one part in 20,000. Such precision was a central ingredient of the recent W mass measurement.

]2

[G

eV

t/d

Nd

1000

2000

3000

4000

5000

6000

7000

Data

MC Signal

Background

ATLAS Work in progress-1

bµ = 8 TeV, 19 s

Elastic arm 1

]2 [GeVt-

3−10 2−10 1−10

sta

Da

ta-M

C

4−

2−

02

4

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| DISCOVERY CENTER FOR PARTICLE PHYSICS6

cays of the Z-boson into a tau lepton and an electron or muon, but also indirectly probed by searching for sterile neutrinos decaying to a very distinct final state, which could be the cause of lepton flavour violation. And should new particles not decay immediately, but fly out through the ATLAS detector, we have been part of pioneering a search for such particles through their interaction with the ATLAS detector and their slower-than-speed-of-light signature.

Finally, we are also been the main contributor to the ALFA detector measuring the total number of proton collisions and looking into the prospect of future ac-celerators and experiments, and what they will (and should) be capable of achieving.

This method allows for a significant enhancement in both the size and shape of the boson mass peak, together with an improved separation of the back-ground distribution, as demonstrated in the data analysis of Run I [2,3], thereby paving the way for an increased new physics reach for Run II. This is very important, in order to assess with better tools the sig-nificance of the slight excess in diboson hadronic final states hinted by Run I data. See the figures below and reference [4].

DEVELOPMENTS IN THE EFFECTIVE FIELD THEORY WORKGROUP

In 2016 the Large Hadron Collider experiment at the European Centre for Nuclear Physics (CERN) gathered an enormous data set at 13 TeV. The AT-LAS experiment accumulated 36 fb^-1 of data while the CMS experiment accumulated 37.8 fb^-1 of data. This is simply an unprecedented amount of data on the interactions of the fundamental particles around the electroweak scale. With this enormous data set the tantalizing hint of an excess of measured events, in a diphoton search in both the ATLAS and CMS ex-periments at around 750 GeV has disappeared. This was not surprising considering the results that the EFT phenomenology group developed in an initial examination of this hint published in “Effective In-terpretations of a diphoton excess” (Berthier, Cline, Shepherd, Trott) but the passing of this excess is still a sad event.

In the absence of explicit new resonances at the LHC, what is a particle physicist to do? The answer to this question in phenomenology is arguably what the EFT phenomenology group is exactly doing - searching for the effects of new physics indirectly using the meth-ods of effective field theory (EFT). What is advisable and possible in data analyses using EFT methods has completely changed with the Run II data set. The cur-

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ANNUAL REPORT 2016 | 7

rent sensitivity of the data set to the SM Higgs particle is still, on the whole, poorer than the data reported at lower energies, but future analyses should change thisfact in the coming year. Gearing up for these data re-leases is exactly what the phenomenology group has been doing.

To do so we have developed the global constraint picture in the Standard Model Effective Field Theory (SMEFT) by advancing one loop calculations of pre-cise experimental data as in the paper “The Z decay width in the SMEFT: yt and λ corrections at one loop” (Hartmann, Shepherd, Trott), through examining the use of the very precise measurement of the W mass in “Interpreting W mass measurements in the SMEFT.” (Bjørn, Trott) and developing the global constraint picture of the SMEFT in “Incorporating doubly reso-nant W± data in a global fit of SMEFT parameters to lift flat directions.” (Bjørn, Berthier, Trott). Finally, the group has also produced interesting new results on what new physics theories that are integrated out can look like in this effective field theory formalism in “On the non-minimal character of the SMEFT” (Jiang, Trott).

All of these works are aimed at developing the con-sistent Effective Field Theory interpretation of LHC and other collider data in the absence of an explicit resonance discovery. This approach is gathering steam

in the particle physics community, which is evidenced by the conference held this fall at NBI “Higgs Effec-tive Field Theories 2016” which had an international attendance of about 60 people. The number of people dedicated to developing this framework is continu-ally growing and this theoretical effort is expected to dominate the large data set analysis of LHC that is just beginning.

In the EFT phenomenology group, this year Chris-tine Hartmann went on to a job in industry after suc-cessfully defending her Ph.D. thesis and producing one last opus work in the Z decay width paper men-tioned above. Mikkel Bjørn graduated his M.Sc. the-sis and went on to start a Ph.D. position in Oxford. Finally, William Shepherd went on to found a junior research group at Mainz university. Additions to the group include Ilaria Brivio, who joined this year after obtaining her Ph.D. from Madrid.

The future looks bright for advancing these EFT methods further and gathering the full benefit pos-sible from the upcoming LHC data set, stay tuned for more results.

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| DISCOVERY CENTER FOR PARTICLE PHYSICS8

DISCOVERIES IN TECHNIQUES OF SCATTERING AMPLITUDES

The understanding of scattering amplitudes in quan-tum field theory has been rapidly evolving in recent years, with many important contributions by mem-bers of the Discovery Center this year. This research group, led by Professors Poul Henrik Damgaard and N. Emil Bjerrum-Bohr and Assistant Professor Jacob Bourjaily at the NBIA, continued their investiga-tion into the scattering equation formalism in 2016. Working with Discovery Center associate Bo Feng from China, this group discovered new representa-tions of Yang-Mills amplitudes and powerful new methods of computation that make manifest duality between color and kinematics for amplitudes. Col-laboration with MSc alumnus Christian Baadsgaard Jepsen led to the discovery of a new set of string-like dual models for general scalar quantum field theories.

At the very beginning of 2016, Discovery member Jacob Bourjaily set a new record for the highest-order perturbative scattering amplitude in four dimensions - for two-to-two scattering - computed through eight loops. Having also set the previous record of seven loops in 2011, the new record of eight did not stand for long as it was smashed before the end of the sum-mer; the discovery of powerful new methods allowed the amplitude to be computed through ten loops!

Another important advance in our understanding of scattering amplitudes was the complete classification of strictly observable functions (to all orders) for two-to-four processes beyond the planar limit. This result was obtained through the correspondence between such functional building blocks and Grassmannian geometry, described in the book “Grassmannian Ge-ometry of Scattering Amplitudes”, written by Discov-ery member Jacob Bourjaily and published in 2016 by Cambridge University Press. Bourjaily was recent-ly awarded a Young Investigator research grant from the Villum Foundation, which will help strengthen the status of the NBIA as a world leader in the inves-tigation of scattering amplitudes.

Illustration of the Pentagon Rule, one of the graphical rules used to simplify the calculation of loop diagrams.

satisfy requirements described above; and on the right we have drawn the three

f -graphs related to the initial graph according to (3.17):

)

8>>>>>><

>>>>>>:

, ,

9>>>>>>=

>>>>>>;

(3.18)

Notice that two of the three points xb

are ‘implicit’ in the manner described above.

Labeling the coecients of the f -graphs in (3.18) from left to right as {c71

, c72

, c73

, c74

},the pentagon rule would imply that c7

1

+c72

+c73

+c74

=0. And indeed, these coecients

of terms in the seven loop correlator turn out to be: {c71

, c72

, c73

, c74

}={0, 0,+1,−1},which do satisfy this identity.

As usual, there are no symmetry factors to consider; but it is important that

only distinct images are included in the set on the right-hand side of (3.16). As will

be discussed in section 4, the pentagon rule is strong enough to fix all coecients

but one not already fixed by the square rule through seven loops.

Proof of the Pentagon Rule

The pentagon rule (3.16) arises from examining the 5-point light-like limit of the

correlator and its relation to the five-particle amplitude (just as the square rule

arises from the 4-point light-like limit and its relation to the four-particle amplitude

explained in section 3.1). As described in section 2.3, in the pentagonal light-like

limit the correlator is directly related to the five-particle amplitude as in (2.17).

In particular let us focus on the terms involving one loop amplitudes in (2.17):

F (`+1) contains the terms,

1

⇠(5)

⇣M(1)

even

M(`1)

even

+ ✏123456

✏12345(m+6)

cM(1)

odd

cM(`1)

odd

⌘. (3.19)

Indeed any term in the correlator which graphically has a plane embedding with

the topology of a 5-cycle whose ‘inside’ contains a single vertex and whose ‘outside’

contains `−1 vertices has to arise from the above terms [25].

Inserting the one loop expressions (2.18) and the algebraic identity (valid only

in the pentagonal light-like limit),

✏123456

✏123457

x2

12

x2

23

x2

34

x2

45

x2

15

= 2 x2

67

+

x2

16

x2

27

x2

35

+ x2

17

x2

26

x2

35

x2

13

x2

25

− x2

17

x2

36

+ x2

16

x2

37

x2

13

− x2

16

x2

17

x2

24

x2

35

x2

13

x2

14

x2

25

+ cyclic

�,(3.20)

then (3.19) becomes the following contribution to F (`+1)

– 21 –

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ANNUAL REPORT 2016 | 9

HINTS TOWARDS A REFORMULATION OF QUANTUM FIELD THEORIES

Not all research done in the Discovery center can be easily put into fixed categories despite and maybe be-cause of the lively collaboration among the members. In order not to disregard these exiting branches of work, by way of example, in this section, Discovery post-doc David McGady is introduced:

David McGady’s work in theoretical physics is main-ly active along two fronts, in addition to a strong, though temporarily latent third.

First, he is very interested in partition functions for relativistic quantum systems, and whether they are invariant under reversing the sign of temperature (T-reflection). Partition functions are one of the funda-mental objects which define both quantum physics and statistical mechanics, i.e. physics of large collec-tions of objects at finite-temperatures. This T-reflec-tion symmetry, which seems closely tied to a funda-mental redundancy in how temperature is encoded in statistical/quantum physics, has possible implications for classifying symmetry protected topological phases of matter in condensed matter systems (related to the 2015 Nobel prize on topology in condensed matter), restricts vacuum energies (related to the classic cos-mological constant problem), and has deep connec-tions to new statements in mathematics, chiefly in the theory of modular forms (associated with the 1994 Fields Medal awarded to Richard Borcherds for work on the Moonshine conjecture).

Second, he is interested in testing Schwinger’s clas-sic prediction that strong electric fields decay via electron-positron pair creation in the condensed mat-ter analog system of graphene. Single-layer graphene (the 2009 Nobel Prize was awarded for experimental isolation of graphene in the lab) is a flat plane of car-bon atoms in a hexagonal pattern, which has amazing electrical and mechanical properties; due its structure, the electrons in graphene behave as if they are mass-

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| DISCOVERY CENTER FOR PARTICLE PHYSICS10

less, charged, particles moving at high energies and move at (an effective) light-speed. As such, graphene is an analog of relativistic quantum physics, and al-lows us to possibly witness this interesting and quali-tatively important phenomenon in a well-controlled experimental setting for the first time since Schwinger worked-out the theory for this effect, in 1951.

Finally, he retains an active interest in how identical, relativistic, states interact and scatter off of each other. Recently, both at the Discovery center and interna-tionally, rich and exciting new structures hidden in scattering processes have been found that are com-pletely obscured by the traditional Feynman diagram technology. These new observations provide exciting hints of a reformulation of quantum field theory.

NEWS FROM ALICE

The study of the Quark-Gluon Plasma (QGP) took a new and exciting turn with the first collisions between lead (Pb) nuclei at the highest energy ever achieved in December 2015. The collision energy reached 5 TeV per pair of colliding nuclear particles corresponding to dazzling 1 Peta electron volts (1015 eV) kinetic energy that can be used to produce new particles. This is about 0.16 milli-Joule, or the energy of 1g when dropped from a height of 1.6 m, but concentrated in

the collision of 2 atomic nuclei. More poetically, this is comparable to the energy of a fat bumblebee hitting your cheek on a hot summer afternoon.

The Discovery ALICE team took a leading role in the preparation of the very first papers at this high energy. These first results measured the number of charged particles produced in such collisions, firstly in a narrow kinematical range (the work of Valenti-na Zaccolo) and in a subsequent unique paper that established the total number of particles produced per head-on collision between two lead nuclei (the work of Christian Holm Christensen). The result is remarkable: over 20.000 electrically charged particles are produced in every single such collision (there are around 50% more particles that are electrically neu-tral and thus difficult to measure, which brings the total production up to more than 30.000 particles per collision). These numbers are a testament to both the enormous energy density that is created during col-lisions, and to the large density of quark-anti-quark pairs that are produced; the energy density exceeds 15 GeV/fm3, more than twenty times the energy density of the proton itself. The Discovery Alice team also led the first work and paper measuring the detailed properties of the quark-gluon plasma at this energy, namely the determina-tion of the flow properties (work of You Zhou). These

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ANNUAL REPORT 2016 | 11

allow the determination of the viscosity of the QGP and rely on a set of techniques developed at NBI/Dis-covery to study the multiparticle correlations in this very special state of matter. Viscosity is an attribute of fluids. The measured value for the viscosity is close to the lower bound predicted by theory for an ideal fluid, and indicates that the early Universe, in the age from about 1 billionth of a second to a millionth of a second after the Big Bang was close to what has been coined an ‘ideal fluid’. Unraveling the details and temperature dependence of the viscosity of the QGP is an important task that will ultimately reveal how much the quark soup interacted during the expansion of the Universe. Towards the end of 2016, another type of nuclear re-action was probed at the LHC. In collisions between

protons and lead nuclei (p+Pb collisions) the proton ‘drills’ a hole through the lead nucleus in a narrow ‘tunnel’. It has been thought earlier that this would not be sufficient to create a QGP, but new results begin to question this wisdom. The same situation applies for high-energy proton-proton collisions. In particular, it is an area of high international focus to determine if there are collective effects in collisions between simple systems. The group is pursuing a number of studies to that effect and several thesis projects are underway.Other ongoing projects aim at studying correlations of the QGP and the distribution of the number of produced particles, the high tail of which may be sen-sitive to new physics, e.g. the Color Glass Condensate

Total number of charged particles as a function of the collision energy per nucleon in central collisions at the AGS, SPS and RHIC accelerators compared to ALICE results from the LHC. The dotted, dashed, and full lines are extrapolations from fits to lower energy results, while the dash-dotted line is a fit over all energies, includ-ing √sNN = 5.02 TeV.

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| DISCOVERY CENTER FOR PARTICLE PHYSICS12

(CGC), a predicted equilibrium state of the nucleon at high energies for which gluon fusion and fission balance out. If it can demonstrated experimentally the CCG might turn out to be a counterpart to other boson condensates, but this time for a unique system ruled by the strong interaction.

At the time of writing the team is preparing for the biggest conference in the field, QuarkMatter 2017 in Chicago, where is very strongly represented with 3 major talks.

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ANNUAL REPORT 2016 | 13

THE ICECUBE DISCOVERY GROUP

The Discovery group probes fundamental neutrino physics at the research frontier with the IceCube neutrino observatory and its low-energy sub-array, DeepCore. IceCube is the largest and most sensitive telescope in the world for extremely high energetic neutrinos from violent astrophysical sources, and with the focus on the nature of neutrino oscillations and the properties of dark matter, the Discovery group has demonstrated leading research capabilities of IceCube at much lower energies as well.

The investigations of tau neutrino events are entering the final stage of the analysis, where Michael Larson is ensuring that all uncertainties are accounted for before revealing the first result from IceCube on the appearance of oscillated tau neutrinos. This analysis on the fundamental properties of neutrino physics adds crucial information to a research field that few experiments in the world study and the work done at the Discovery Center is an integral step to establish whether additional flavors of neutrinos might exist.

With IceCube located at the South Pole, Morten’s de-ployment to the observatory in early 2016 attracted attention from media as well as from teachers and pupils at both elementary and high schools, follow-ing the daily online diary about neutrino physics,

IceCube and life at the Amundsen-Scott research station. In addition, the results on neutrino physics at the research frontier were brought to the broader public through multiple popular talks throughout the year.

The results from the search for neutrino signal from self-annihilat-ing dark matter in the galaxy has been finalized and is expected to be published in early 2017. The analysis, led by Morten Medici, did not find evidence for a neutrino signal from annihilating dark matter, but produced some of the world’s best limits on the particle properties of dark matter from our galaxy.

101 102 103 104 105

WIMP Mass [GeV]

1026

1025

1024

1023

1022

1021

hσA

vi[

cm3

s1

]

Natural scale

NFW profile⌧+⌧-channel

IceCube Preliminary

IC59 DwarfsIC79 Halo, MultipoleIC86 Halo, CascadesIC79 GC

IC86 GC (2012-14)ANTARES (2007-12)Fermi+MAGIC Seg1 95%Veritas Seg1 95% (Ein.)

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| DISCOVERY CENTER FOR PARTICLE PHYSICS14

COSMOLOGY CLOSE AND AFAR

About twenty years ago, the ‘standard theory’ of cosmology was complemented by the puzzling dark energy in light of observations of supernovae. The simplest incarnation of dark energy is Einstein’s Cos-mological Constant. Since then, the hunt for the ex-act nature of this dark energy has sharpened, and we now try to ask if it really is a simple Cosmological Constant or something else–and how to distinguish between things we cannot observe directly–or noth-ing at all!

All evidence for the Cosmological Constant so far is indirect, and based on the simple model of Friedman, Robertson and Walker. This model originates in the 1920s, and has been further developed since then. As the name suggests, we are unable to interact with this ‘dark’ component of the Universe, and so we must in-fer its existence by observing the Cosmic Microwave Background, exploding stars, and by correlating mil-lions and millions of galaxy positions.

Staff from the Discovery Center contributed to this hunt in a paper published in Nature Scientific Re-ports, showing that the evidence for the cosmological constant in the FRW model should be reconsidered carefully. The way supernovae are used to infer cos-mic distances out to several billion light-years requires

The reconstructed energy spectrum of events expected in the search for tau neutrino appearance. The search is expected to re-sult in nearly 150.000 events from three years of data and up to 5.000 tau neutrino events predicted, increasing the number of tau neutrinos observed by neutrino telescopes by more than an order of magnitude.

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ANNUAL REPORT 2016 | 15

careful statistical analysis. When this analysis was done on the most recent compilation of supernova observations, the evidence for a cosmological con-stant drops considerably. Researchers in the Discovery Center also look at cos-mological inferences from both the very beginning and from the very late universe. Cosmological infer-ences change with the power spectrum of the primor-dial quantum fluctuations of the early universe, as do they change when the Milky Way is in the way of our telescopes! Both these things are being researched by

students and staff in theory and directly involved in the Planck Experiment.

In the past year, the Planck Collaboration published their main results of the second and last data release including the highly cited paper about the cosmo-logical parameters. But also astrophysical results have gotten great attention, as the understanding of (com-parably) nearby astrophysical processes is an absolute prerequisite for the correct interpretation of the data regarding big questions about the beginnings of our Universe. These include, of course, the before men-tioned nature of dark energy and dark matter, but also a hypothesized phase of rapid expansion called infla-tion. As the associated parameters are to be measured at increasingly high precision, also the knowledge about potential influences, such as instrumental and astrophysical effects must increase as well. Discovery’s CMB group has been focusing mainly on the latter, pinpointing which areas deserve primary attention for future CMB experiments–in general, but also in specific for an experiment already deployed in Green-land in collaboration with colleagues at the University of California, Santa Barbara. This experiment, which was given the names Deep-Space and B-Machine, attempts to measure polarized emission on the sky at low frequencies (less than 20 GHz), which is expected to finally lead to answers

Contour plot of the profile likelihood in the Ωm–Ω/\ (matter and vacuum density) plane depicting an exclusion of a non-accelerating universe only at ~3 standard deviations.

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| DISCOVERY CENTER FOR PARTICLE PHYSICS16

to urgent questions about Galactic foregrounds. The thereby obtained knowledge will help to get yet an-other step closer to providing answers to some of the most difficult puzzles the universe has given us.

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SEARCH FOR HIDDEN PARTICLES

In 2013 a group of experimentalists and theorists have proposed a new experiment -- Search for Hid-den Particles or SHiP. Oleg Ruchayskiy, Discovery’s new associate professor, was among the authors of the original ``Expression of Interest’. The idea of the ex-periment is to search for light (few hundreds of MeV to about 10 GeV) and super-weakly interacting par-ticles. The idea received strong support from the par-

ticle physics community around the world and today SHiP is officially recognized as an “Experiment under Study” in CERN.

Oleg Ruchayskiy and Stefania Xella, also associated professor of the Discovery Center, are working on estimations of SHiP’s sensitivity towards hypotheti-cal particles - heavy neutral leptons. Oleg Ruchays-

N2,3

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kiy is also working on cosmological and astrophysical implications of existence of these particles. Stefania Xella is also contributing a concrete instrumental part of the proposed experiment in collaboration with groups from Sweden.

In 2016 Oleg Ruchayskiy shared an ERC Advanced Grant NuBSM ``From Fermi to Planck: a bottom up approach’’ with Prof. M. Shaposhnikov from EPFL, Lausanne (leading host) and Leiden University (Prof. A. Boyarsky). The goal of the grant is to explore theo-retical and phenomenological consequences of hy-pothetical super-weakly interacting particles (sterile neutrinos) and identify possible means of their detec-tion.

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ANNUAL REPORT 2016 | 19

DEFENDED MSC THESES IN 2016

Eva Brottmann HansenEarly Atmospheric Muon Rejection with IceCube-PIN-GU

Stavros KitsiosEvaluation of the Muon Combinatorial Background at SHiP Experiment

Adam MielkeExact Zero Modes in Coupled Chirac Systems

Samuel Stokholm BaxterThe Search for Right Handed Neutrinos using the SHiP Experiment

Hans Lindbo Røpke-HaarslevAlanine Dosimetry using MV Photon Beams

Freja ThoresenWavelets & Information Theory for Pile-Up Removal

Daniel Stefaniak NielsenAn Alternative Analysis of the Semi-Leptonic Diboson Final States in the Boosted Regime

Carl-Johan Frost LercheNeutronics evaluation of the ITER CTS diagnostic sys-tem

Ahmad Zakria GardiziThe Alice Fast Interaction Trigger Detector

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SEMINARS, WORKSHOPS AND COURSES

Simons Program: Relativistic Astrophysics and Gravi-tational Waves , 27-28 July

Simons Program: Current Themes in High Energy Physics and Cosmology, 15-26 August

Flow in Heavy Ion Collisions, 19 September

HEFT 2016 workshop, 26-28 October

General overview of Recent Results in Heavy Ion Physics, 3. November

PhD school: Frontier in Particle Physics: Flavor Phys-ics, 7-11 November

Several seminars and symposia have also been ar-ranged, see: http://discoverycenter.nbi.ku.dk/calendar/2016/prev_events2016/

DISCOVERY CENTER FINANCING

The Discovery budget for 2016 from the Danish Na-tional Research Foundation is DKK 5.199.120

(including overhead). This amount was also in 2016 supplemented by a large number of other grants and by Copenhagen University contributions. In the fig-ure below overhead is not included.

Salaries staff2.326.500 (64%)

Salaries PhD714.000 (20%)

Traves & workshops410.000 (11%)

Equipment160.000 (5%)

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DISCOVERY CENTER PEOPLE

Scientific staffAlejandro AlonsoBjörn Stefan NilssonBørge Svane NielsenCraig WiglesworthDavid McGadyHao LiuHans BøggildIan BeardenJacob BourjailyJames MonkJason KoskinenJens Jørgen GaardhøjeJørgen Beck HansenJørn Dines HansenKim SplittorffKristjan GulbrandsenMatti HerranenMarek ChojnackiMichael TrottMogens DamNiels Emil J. Bjerrum-BohrPavel NaselskyPer Rex ChristensenPeter H. HansenPoul Henrik DamgaardSimon Caron-Huot

Stefania XellaSubodh PatilThomas StuttardTroels C. PetersenValentina ZaccoloWilliam ShepheardYou ZhouYun JiangXiaoren YuXiaoyuan Huang

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PhD studentsAmel Durakovic Christian BourjauDaniel Stefaniak NielsenFreja ThoresenGorm GalsterJeppe Trøst NielsenKatarina GajdosovaLais Ozelin de Lima PimentelLaure BerthierMeera MachadoMichael LarsonMilena BajicMorten Ankersen MediciRosanna IgnazziSebastian von HauseggerSimon Stark MortensenVojtech Pacik

MSc studentsAnders Hammer HolmAndreas SøgaardCarl-Johan Frost LercheCarsten LorenzenChristian Baadsgaard JepsenChristopher JacobsenDaniel Stefaniak NielsenFreja ThoresenGorm GalsterJacob Bundgaard NielsenKristoffer Levin HansenMike LaugeMikkel JensenSamuel BaxterSara Buur SvendsenStavros Kitsios

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ANNUAL REPORT 2016 | 23

Discovery associatesAlberto Guffanti, University of TurinAmanda Cooper-Sarkar, University of OxfordAnupam Mazumdar, Lancaster UniversityBo Feng, Zhejiang UniversityElse Lytken, Lund UniversityGiulia Zanderighi, Oxford UniversityHarald Ita, University of FreiburgIan Hincliffe, Lawrence Berkeley Lab.Igor Novikov, Moscow UniversityJames Nagle, Univ. of Colorado, BoulderJürgen Schukraft, CERNKatri Huito, University of HelsinkiLeif Lönnblad, Lund UniversityLung-Yih Chang, Academia Sinica, TaiwanMaxim Perelstein, Cornell UniversityOleg Verkhodanov, SAO, RussiaPeter Coles, University of SussexPeter Skands, Monash University, AustraliaPierre Vanhove, IHES &SaclayRaju Venugopalan, BrookhavenRichard Ball, University of EdinburghRutt Britto, SaclaySlava Mukhanov, Ludwig-Maximillian UniversityStefano Forte, University of MilanoSubir Sarkar, University of Oxford and NBIUrs Wiedemann, CERNValery Rubakov, BrookhavenZvi Bern, UCLA

Discovery scientific advisory boardAndrei Linde, Stanford UniversityChris Quigg, FermilabJürgen Schukraft, CERNNick Ellis, CERN

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VisitorsWouter Verkere, Nikhef, NL Ruth Durrer, Geneva, CH Jorge Santos, Cambridge, UKPaolo Benincasa, Perugia, ITAleksey Cherman, Washington, USAnders Haar, Stavanger, NOKenneth Clark, Toronto, CAGeorg Raffelt, MPPI, DELuis Fernando Alday, Oxford, UKSuvodip Mukhherje, IUCCA, INKen Mimasu, Sussex, UKBalt van Rees Durham, UKDavid Wiltshire, Canterbury, AUNima Arkani-Hamed, IAS, Princeton, USChia-Hsien Chen, Caltech, USAnthony Timmins, Houston, USFelix Yu, Columbia, USDonal O’Connell, Cambridge, UK Kai Schmidt-Hoberg, DESY, DEYang-Ting Chien, Los Alamos, USAndré Gruzinov, New York, USYuri Schekinov, Moscow, RUMichael Lisa, Ohio, USTorsten Ensslin, MPL, DEAmin Ahmed Nazami, Mumbai, INFabian Kuger, CERN, CHMarkus Ahlers, Wisconsin, USThomas Stuttard

Martin Pohl, DESY, DEChristopher Weniger, Amsterdam, NLManuel Meyer, Stockholm, SEWouter Waalewijn, Amsterdam, NLPasquale D. Serpico, CNRS, FRAndrey Katz, CERN, CHMichelangelo Mangano, CERN, CHCliff Burgess, McMaster UniversityChristiana Pantelidou, Barcelona, ESJames Wells, UCSF, US

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DISCOVERY PUBLICATIONS 2016

[1] Atlas Collab., Measurement of W boson angular distributions in events with high transverse momentum jets at √s=8 TeV using the ATLAS detector, DOI: 10.1016/j.physletb.2016.12.005Phys.Lett. B765 (2017) 132

[2] Atlas Collab., Search for dark matter in association with a Higgs boson decaying to b-quarks in pp collisions at √s=13 TeV with the ATLAS detector DOI:10.1016/j.physletb.2016.11.035 Phys.Lett. B765 (2017) 11-31

[3] Atlas Collab., A measurement of material in the ATLAS tracker using secondary hadronic interactions in 7 TeV pp collisionsDOI: 10.1088/1748-0221/11/11/P11020JINST 11 (2016) no.11, P11020

[4] Atlas Collab., Luminosity determination in pp colli-sions at √s=8 TeV using the ATLAS detector at the LHC DOI: 10.1140/epjc/s10052-016-4466-1Eur.Phys.J. C76 (2016) no.12, 653

[5] Atlas Collab., Measurement of W+W− production in association with one jet in proton--proton collisions at √s=8 TeV with the ATLAS detector DOI:10.1016/j.physletb.2016.10.014 Phys.Lett. B763 (2016) 114-133

[6] Atlas Collab., Search for dark matter produced in association with a hadronically decaying vector boson in pp collisions at √s=13 TeV with the ATLAS detector DOI:10.1016/j.physletb.2016.10.042 Phys.Lett. B763 (2016) 251-268

[7] Atlas Collab., Study of hard double-parton scatter-ing in four-jet events in pp collisions at √s=7 TeV with the ATLAS experiment DOI: 10.1007/JHEP11(2016)110 JHEP 1611 (2016) 110

[8] Atlas Collab., Search for Minimal Supersymmetric Standard Model Higgs bosons H/A and for a Z′ boson in the ττ final state produced in pp collisions at √s=13 TeV with the ATLAS Detector DOI: 10.1140/epjc/s10052-016-4400-6 Eur.Phys.J. C76 (2016) no.11, 585

[9] Atlas Collab., Dark matter interpretations of AT-LAS searches for the electroweak production of supersymmet-ric particles in √s=8 TeV proton-proton collisions DOI: 10.1007/JHEP09(2016)175 JHEP 1609 (2016) 175 [10] Atlas Collab., Measurement of the b dijet cross sec-tion in pp collisions at √s=7 TeV with the ATLAS detector DOI: 10.1140/epjc/s10052-016-4521-y Eur.Phys.J. C76 (2016) no.12, 670

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[11] Atlas Collab., Search for new phenomena in different-flavour high-mass dilepton final states in pp collisions at √s=13 Tev with the ATLAS detector DOI: 10.1140/epjc/s10052-016-4385-1 Eur.Phys.J. C76 (2016) no.10, 541

[12] Atlas Collab., Measurement of top quark pair dif-ferential cross-sections in the dilepton channel in pp collisions at √s= 7 and 8 TeV with ATLAS DOI: 10.1103/PhysRevD.94.092003 Phys.Rev. D94 (2016) no.9, 092003

[13] Atlas Collab., Measurement of the total cross section from elastic scattering in pp collisions at √s=8 TeV with the ATLAS detector DOI:10.1016/j.physletb.2016.08.020 Phys.Lett. B761 (2016) 158-178

[14] Atlas Collab., Search for heavy resonances decay-ing to a Z boson and a photon in pp collisions at √s=13 TeV with the ATLAS detector DOI:10.1016/j.phys-letb.2016.11.005 Phys.Lett. B764 (2017) 11-30

[15] Atlas Collab., Search for squarks and gluinos in events with hadronically decaying tau leptons, jets and missing transverse momentum in proton-proton collisions at √s=13 TeV recorded with the ATLAS detector DOI: 10.1140/epjc/s10052-016-4481-2 Eur.Phys.J. C76 (2016) no.12, 683

[16] Atlas Collab., Search for new resonances decaying to a W or Z boson and a Higgs boson in the l+l−b, lνb, and νb channels with pp collisions at √s=13 TeV with the ATLAS detector DOI:10.1016/j.physletb.2016.11.045 Phys.Lett. B765 (2017) 32-52

[17] Atlas Collab., Measurement of exclusive γγ→W+W− production and search for exclusive Higgs boson production in pp collisions at √s=8 TeV using the ATLAS detector DOI: 10.1103/PhysRevD.94.032011 Phys.Rev. D94 (2016) no.3, 032011

[18] Atlas Collab., Search for high-mass new phenomena in the dilepton final state using proton-proton collisions at √s=13 TeV with the ATLAS detector DOI:10.1016/j.physletb.2016.08.055 Phys.Lett. B761 (2016) 372-392

[19] Atlas Collab., Search for Higgs and Z Boson Decays to ϕγ with the ATLAS Detector DOI:10.1103/PhysRevLett.117.111802 Phys.Rev.Lett. 117 (2016) no.11, 111802

[20] Atlas Collab., Search for supersymmetry in a final state containing two photons and missing transverse momen-tum in √s=13 TeV pp collisions at the LHC using the ATLAS detector DOI: 10.1140/epjc/s10052-016-4344-x Eur.Phys.J. C76 (2016) no.9, 517

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[21] Atlas Collab., Measurement of jet activity in top quark events using the eμ final state with two b-tagged jets in pp collisions at √s=8 TeV with the ATLAS detector DOI: 10.1007/JHEP09(2016)074 JHEP 1609 (2016) 074

[22] Atlas Collab., Search for bottom squark pair pro-duction in proton–proton collisions at √s=13 TeV with the ATLAS detector DOI: 10.1140/epjc/s10052-016-4382-4 Eur.Phys.J. C76 (2016) no.10, 547

[23] Atlas Collab., Search for the Higgs boson produced in association with a W boson and decaying to four b-quarks via two spin-zero particles in pp collisions at 13 TeV with the ATLAS detector DOI: 10.1140/epjc/s10052-016-4418-9 Eur.Phys.J. C76 (2016) no.11, 605

[24] Atlas Collab., The performance of the jet trigger for the ATLAS detector during 2011 data taking DOI: 10.1140/epjc/s10052-016-4325-0 Eur.Phys.J. C76 (2016) no.10, 526

[25] Atlas Collab., Search for heavy long-lived charged R-hadrons with the ATLAS detector in 3.2 fb−1 of proton-proton collision data at √s=13 TeV DOI:10.1016/j.physletb.2016.07.042 Phys.Lett. B760 (2016) 647-665

[26] Atlas Collab., Searches for heavy diboson resonances in pp collisions at √s=13 TeV with the ATLAS detector DOI: 10.1007/JHEP09(2016)173 JHEP 1609 (2016) 173

[27] Atlas Collab., Search for pair production of Higgs bosons in the bb final state using proton-proton collisions at √s=13 TeV with the ATLAS detector DOI: 10.1103/PhysRevD.94.052002 Phys.Rev. D94 (2016) no.5, 052002

[28] Atlas Collab., Measurement of the W±Z boson pair-production cross section in pp collisions at √s=13 TeV with the ATLAS Detector DOI:10.1016/j.phys-letb.2016.08.052 Phys.Lett. B762 (2016) 1-22

[29] Atlas Collab., Search for new resonances in events with one lepton and missing transverse momentum in pp colli-sions at √s=13 TeV with the ATLAS detector DOI:10.1016/j.physletb.2016.09.040 Phys.Lett. B762 (2016) 334-352

[30] Atlas Collab., Search for top squarks in final states with one isolated lepton, jets, and missing transverse momen-tum in √s=13 TeV pp collisions with the ATLAS detector DOI: 10.1103/PhysRevD.94.052009 Phys.Rev. D94 (2016) no.5, 052009

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[31] Atlas Collab., Search for resonances in diphoton events at √s=13 TeV with the ATLAS detector DOI: 10.1007/JHEP09(2016)001 JHEP 1609 (2016) 001

[32] Atlas Collab., Measurement of the t production cross-section using eμ events with b-tagged jets in pp collisions at √s=13 TeV with the ATLAS detector DOI:10.1016/j.physletb.2016.08.019 Phys.Lett. B761 (2016) 136-157

[33] Atlas Collab., Measurement of the Inelastic Proton-Proton Cross Section at √s=13 TeV with the ATLAS Detector at the LHC DOI:10.1103/PhysRevLett.117.182002 Phys.Rev.Lett. 117 (2016) no.18, 182002

[34] Atlas Collab., Measurements of the Higgs boson production and decay rates and constraints on its couplings from a combined ATLAS and CMS analysis of the LHC pp collision data at √s=7 and 8 TeV DOI: 10.1007/JHEP08(2016)045 JHEP 1608 (2016) 045

[35] Atlas Collab., Search for TeV-scale gravity signa-tures in high-mass final states with leptons and jets with the ATLAS detector at √s=13 TeV DOI: 10.1016/j.physletb.2016.07.030 JHEP 1611 (2016) 112

[36] Atlas Collab., Search for the Standard Model Higgs boson produced by vector-boson fusion and decaying to bottom quarks in √s=8 TeV pp collisions with the ATLAS detec-tor DOI: 10.1007/JHEP11(2016)112 JHEP 1611 (2016) 112

[37] Atlas Collab., Measurement of the top quark mass in the t → dilepton channel from √s=8 TeV ATLAS data DOI:10.1016/j.physletb.2016.08.042 Phys.Lett. B761 (2016) 350-371

[38] Atlas Collab., Measurement of the photon identi-fication efficiencies with the ATLAS detector using LHC Run-1 data DOI: 10.1140/epjc/s10052-016-4507-9 Eur.Phys.J. C76 (2016) no.12, 666

[39] Atlas Collab., Measurement of the double-differ-ential high-mass Drell-Yan cross section in pp collisions at √s=8 TeV with the ATLAS detector DOI: 10.1007/JHEP08(2016)009 JHEP 1608 (2016) 009[40] Atlas Collab., Charged-particle distributions at low transverse momentum in √s=13 TeV pp interactions mea-sured with the ATLAS detector at the LHC DOI: 10.1140/epjc/s10052-016-4335-y Eur.Phys.J. C76 (2016) no.9, 502

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[41] Atlas Collab., Measurement of the angular coef-ficients in Z -boson events using electron and muon pairs from data taken at √s=8 TeV with the ATLAS detector DOI: 10.1007/JHEP08(2016)159 JHEP 1608 (2016) 159

[42] Atlas Collab., Search for pair production of gluinos decaying via stop and sbottom in events with b-jets and large missing transverse momentum in pp collisions at √s=13 TeV with the ATLAS detector DOI: 10.1103/PhysRevD.94.032003 Phys.Rev. D94 (2016) no.3, 032003

[43] Atlas Collab., Measurement of the relative width difference of the B0-0 system with the ATLAS detector DOI: 10.1007/JHEP06(2016)081 JHEP 1606 (2016) 081

[44] Atlas Collab., Transverse momentum, rapidity, and centrality dependence of inclusive charged-particle produc-tion in √sNN=5.02 TeV p+Pb collisions measured by the ATLAS experiment DOI:10.1016/j.physletb.2016.10.053 Phys.Lett. B763 (2016) 313-336

[45] Atlas Collab., Search for scalar leptoquarks in pp collisions at √s=13 TeV with the ATLAS experiment DOI: 10.1088/1367-2630/18/9/093016 New J.Phys. 18 (2016) no.9, 093016

[46] Atlas Collab., Search for gluinos in events with an isolated lepton, jets and missing transverse momentum at √s=13 TeV with the ATLAS detector DOI: 10.1140/epjc/s10052-016-4397-xEur.Phys.J. C76 (2016) no.10, 565

[47] Atlas Collab., Search for squarks and gluinos in final states with jets and missing transverse momentum at √s=13 TeV with the ATLAS detector DOI: 10.1140/epjc/s10052-016-4184-8 Eur.Phys.J. C76 (2016) no.7, 392

[48] Atlas Collab., Measurement of the inclusive isolated prompt photon cross section in pp collisions at √s=8 TeV with the ATLAS detector DOI: 10.1007/JHEP08(2016)005 JHEP 1608 (2016) 005

[49] Atlas Collab., Gas gain stabilisation in the AT-LAS TRT detector DOI: 10.1088/1748-0221/11/04/P04027 JINST 11 (2016) no.04, P04027

[50] Atlas Collab., Search for new phenomena in final states with an energetic jet and large missing transverse mo-mentum in pp collisions at √s=13 TeV using the ATLAS detector DOI: 10.1103/PhysRevD.94.032005 Phys.Rev. D94 (2016) no.3, 032005

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[51] Atlas Collab., Measurements of the charge asymme-try in top-quark pair production in the dilepton final state at √s=8 TeV with the ATLAS detector DOI: 10.1103/PhysRevD.94.032006 Phys.Rev. D94 (2016) no.3, 032006

[52] Atlas Collab., Measurements of Zγ and Zγγ production in pp collisions at √s=8 TeV with the ATLAS detector DOI: 10.1103/PhysRevD.93.112002 Phys.Rev. D93 (2016) no.11, 112002

[53] Atlas Collab., Search for metastable heavy charged particles with large ionization energy loss in pp collisions at √s=13 TeV using the ATLAS experiment DOI: 10.1103/PhysRevD.93.112015 Phys.Rev. D93 (2016) no.11, 112015

[54] Atlas Collab., Study of the rare decays of B0S and

B0 into muon pairs from data collected during the LHC Run 1 with the ATLAS detector DOI: 10.1140/epjc/s10052-016-4338-8 Eur.Phys.J. C76 (2016) no.9, 513

[55] Atlas Collab., Search for the Standard Model Higgs boson decaying into b produced in association with top quarks decaying hadronically in pp collisions at √s=8 TeV with the ATLAS detector DOI: 10.1007/JHEP05(2016)160 JHEP 1605 (2016) 160

[56] Atlas Collab., Measurement of fiducial differential cross sections of gluon-fusion production of Higgs bosons decaying to WW*→eνμν with the ATLAS detector at √s=8 TeV DOI: 10.1007/JHEP08(2016)104 JHEP 1608 (2016) 104

[57] Atlas Collab., Search for new phenomena in events with a photon and missing transverse momentum in pp colli-sions at √s=13 TeV with the ATLAS detector DOI: 10.1007/JHEP06(2016)059 JHEP 1606 (2016) 059

[58] Atlas Collab., Measurement of W± and Z-boson production cross sections in pp collisions at √s=13 TeV with the ATLAS detector DOI:10.1016/j.physletb.2016.06.023 Phys.Lett. B759 (2016) 601-621

[59] Atlas Collab., Search for charged Higgs bosons produced in association with a top quark and decaying via H±→τν using pp collision data recorded at √s=13 TeV by the ATLAS detector DOI:10.1016/j.phys-letb.2016.06.017 Phys.Lett. B759 (2016) 555-574

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[60] Atlas Collab., Beam-induced and cosmic-ray back-grounds observed in the ATLAS detector during the LHC 2012 proton-proton running period DOI: 10.1088/1748-0221/11/05/P05013 JINST 11 (2016) no.05, P05013

[61] Atlas Collab., Search for resonances in the mass distribution of jet pairs with one or two jets identified as b-jets in proton-proton collisions at √s=13 TeV with the ATLAS detector DOI:10.1016/j.physletb.2016.05.064 Phys.Lett. B759 (2016) 229-246

[62] Atlas Collab., Identification of high transverse momentum top quarks in pp collisions at √s=8 TeV with the ATLAS detector DOI: 10.1007/JHEP06(2016)093 JHEP 1606 (2016) 093

[63] Atlas Collab., Charged-particle distributions in pp interactions at √s=8 TeV measured with the ATLAS detector DOI: 10.1140/epjc/s10052-016-4203-9 Eur.Phys.J. C76 (2016) no.7, 403

[64] Atlas Collab., Measurements of W±Z production cross sections in pp collisions at √s=8 TeV with the AT-LAS detector and limits on anomalous gauge boson self-couplings DOI: 10.1103/PhysRevD.93.092004 Phys.Rev. D93 (2016) no.9, 092004

[65] Atlas Collab., Measurement of total and differential W+W− production cross sections in proton-proton collisions at √s=8 TeV with the ATLAS detector and limits on anoma-lous triple-gauge-boson couplings DOI: 10.1007/JHEP09(2016)029 JHEP 1609 (2016) 029

[66] Atlas Collab., Search for supersymmetry at √s=13 TeV in final states with jets and two same-sign leptons or three leptons with the ATLAS detector DOI: 10.1140/epjc/s10052-016-4095-8 Eur.Phys.J. C76 (2016) no.5, 259

[67] Atlas Collab., Measurement of event-shape observ-ables in Z→l+l− events in pp collisions at √s=7 TeV with the ATLAS detector at the LHC DOI: 10.1140/epjc/s10052-016-4176-8 Eur.Phys.J. C76 (2016) no.7, 375

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[68] Atlas Collab., Search for new phenomena in final states with large jet multiplicities and missing transverse momentum with ATLAS using √s=13 TeV proton-proton collisions DOI:10.1016/j.physletb.2016.04.005 Phys.Lett. B757 (2016) 334-355

[69] Atlas Collab., Search for single production of a vector-like quark via a heavy gluon in the 4b final state with the ATLAS detector in pp collisions at √s=8 TeV DOI:10.1016/j.physletb.2016.04.061 Phys.Lett. B758 (2016) 249-268

[70] Atlas Collab., Search for single production of vector-like quarks decaying into Wb in pp collisions at √s=8 TeV with the ATLAS detector DOI: 10.1140/epjc/s10052-016-4281-8 Eur.Phys.J. C76 (2016) no.8, 442

[71] Atlas Collab., Test of CP Invariance in vector-boson fusion production of the Higgs boson using the Optimal Ob-servable method in the ditau decay channel with the ATLAS detector DOI: 10.1140/epjc/s10052-016-4499-5 Eur.Phys.J. C76 (2016) no.12, 658

[72] Atlas Collab., Charged-particle distributions in √s=13 TeV pp interactions measured with the ATLAS de-tector at the LHC DOI:10.1016/j.physletb.2016.04.050 Phys.Lett. B758 (2016) 67-88

[73] Atlas Collab., Measurement of the charged-particle multiplicity inside jets from √s=8 TeV pp collisions with the ATLAS detector DOI: 10.1140/epjc/s10052-016-4126-5 Eur.Phys.J. C76 (2016) no.6, 322

[74] Atlas Collab., A search for top squarks with R-parity-violating decays to all-hadronic final states with the ATLAS detector in √s=8 TeV proton-proton collisions DOI: 10.1007/JHEP06(2016)067 JHEP 1606 (2016) 067

[75] Atlas Collab., A search for an excited muon decaying to a muon and two jets in pp collisions at √s=8 TeV with the ATLAS detector DOI: 10.1088/1367-2630/18/7/073021 New J.Phys. 18 (2016) no.7, 073021

[76] Atlas Collab., Probing lepton flavour violation via neutrinoless τ→3μ decays with the ATLAS detector DOI: 10.1140/epjc/s10052-016-4041-9 Eur.Phys.J. C76 (2016) no.5, 232

[77] Atlas Collab., Measurement of the CP-violating phase ϕS and the B0

S meson decay width difference with B0

S→J/ψϕ decays in ATLAS DOI: 10.1007/JHEP08(2016)147 JHEP 1608 (2016) 147

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ANNUAL REPORT 2016 | 33

[78] Atlas Collab., Measurement of the t production cross-section using eμ events with b-tagged jets in pp collisions at √s=7 and 8 TeV with the ATLAS detector DOI: 10.1140/epjc/s10052-014-3109-7,10.1140/epjc/s10052-016-4501-2 Eur.Phys.J. C74 (2014) no.10, 3109, Addendum: Eur.Phys.J. C76 (2016) no.11, 642

[79] Alice Collab., Multipion Bose-Einstein correlations in pp,p -Pb, and Pb-Pb collisions at energies available at the CERN Large Hadron ColliderDOI:10.1103/Phys-RevC.93.054908 Phys.Rev. C93 (2016) no.5, 054908

[80] Alice Collab., Multi-strange baryon production in p-Pb collisions at √sNN=5.02 TeV DOI:10.1016/j.physletb.2016.05.027 Phys.Lett. B758 (2016) 389-401

[81] Alice Collab., Centrality dependence of the charged-particle multiplicity density at midrapidity in Pb-Pb collisions at √sNN =5.02 TeV DOI:10.1103/PhysRev-Lett.116.222302 Phys.Rev.Lett. 116 (2016) no.22, 222302

[82] Alice Collab., Charge-dependent flow and the search for the chiral magnetic wave in Pb-Pb collisions at √sNN

=2.76 TeV DOI:10.1103/PhysRevC.93.044903 Phys.Rev. C93 (2016) no.4, 044903

[83] Alice Collab., Participant and spectator scaling of spectator fragments in Au+Au and Cu+Cu collisions at √sNN =19.6 and 22.4 GeV DOI: 10.1103/PhysRevC.94.024903 Phys.Rev. C94 (2016) no.2, 024903

[84] Alice Collab., Measurement of an excess in the yield of J/ψ at very low pT in Pb-Pb collisions at √sNN =2.76 TeV DOI:10.1103/PhysRevLett.116.222301 Phys.Rev.Lett. 116 (2016) no.22, 222301

[85] Alice Collab., Pseudorapidity and transverse-mo-mentum distributions of charged particles in proton–proton collisions at √s=13 TeV DOI:10.1016/j.physletb.2015.12.030 Phys.Lett. B753 (2016) 319-329

[86] Alice Collab., Inclusive quarkonium production at forward rapidity in pp collisions at √s=8 TeV DOI: 10.1140/epjc/s10052-016-3987-y Eur.Phys.J. C76 (2016) no.4, 184

[87] Alice Collab., Measurement of electrons from heavy-flavour hadron decays in p-Pb collisions at √sNN=5.02 TeV DOI:10.1016/j.physletb.2015.12.067 Phys.Lett. B754 (2016) 81-93

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| DISCOVERY CENTER FOR PARTICLE PHYSICS34

[88] Alice Collab., Azimuthal anisotropy of charged jet production in √sNN=2.76 TeV Pb-Pb collisions DOI:10.1016/j.physletb.2015.12.047 Phys.Lett. B753 (2016) 511-525

[89] Alice Collab., Direct photon production in Pb-Pb collisions at √sNN=2.76 TeVDOI:10.1016/j.physletb.2016.01.020 Phys.Lett. B754 (2016) 235-248

[90] Alice Collab., Centrality evolution of the charged-particle pseudorapidity density over a broad pseudorapidity range in Pb-Pb collisions at √sNN=2.76 TeV DOI:10.1016/j.physletb.2015.12.082 Phys.Lett. B754 (2016) 373-385

[91] Alice Collab., Measurement of DS+ production and nuclear modification factor in Pb-Pb collisions at √sNN=2.76 TeV DOI: 10.1007/JHEP03(2016)082 JHEP 1603 (2016) 082

[92] Alice Collab., Multiplicity and transverse momentum evolution of charge-dependent correlations in pp, p–Pb, and Pb–Pb collisions at the LHC DOI: 10.1140/epjc/s10052-016-3915-1 Eur.Phys.J. C76 (2016) no.2, 86

[93] Alice Collab., Transverse momentum dependence of D-meson production in Pb-Pb collisions at √sNN=2.76 TeV DOI: 10.1007/JHEP03(2016)081JHEP 1603 (2016) 081

[94] Alice Collab., Study of cosmic ray events with high muon multiplicity using the ALICE detector at the CERN Large Hadron Collider DOI: 10.1088/1475-7516/2016/01/032JCAP 1601 (2016) no.01, 032

[95] Alice Collab., Centrality dependence of pion freeze-out radii in Pb-Pb collisions at √sNN=2.76 TeV DOI: 10.1103/PhysRevC.93.024905 Phys.Rev. C93 (2016) no.2, 024905

[96] Alice Collab., Event shape engineering for inclusive spectra and elliptic flow in Pb-Pb collisions at √sNN=2.76 TeV DOI: 10.1103/PhysRevC.93.034916Phys.Rev. C93 (2016) no.3, 034916

[97] Alice Collab., Elliptic flow of muons from heavy-flavour hadron decays at forward rapidity in Pb–Pb collisions at √sNN=2.76 TeVDOI: 10.1016/j.physletb.2015.11.059Phys.Lett. B753 (2016) 41-56

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ANNUAL REPORT 2016 | 35

[98] Alice Collab., Production of light nuclei and anti-nuclei in pp and Pb-Pb collisions at energies available at the CERN Large Hadron Collider DOI: 10.1103/PhysRevC.93.024917Phys.Rev. C93 (2016) no.2, 024917

[99] Alice Collab., 3ΛH and 3Λ¯H¯ production in Pb-Pb collisions at √sNN=2.76 TeV DOI: 10.1016/j.physletb.2016.01.040Phys.Lett. B754 (2016) 360-372

[100] Alice Collab., Differential studies of inclusive J/ψ and ψ(2S) production at forward rapidity in Pb-Pb collisions at √sNN=2.76 TeV DOI: 10.1007/JHEP05(2016)179JHEP 1605 (2016) 179

[101] Alice Collab., Forward-central two-particle correla-tions in p-Pb collisions at √sNN=5.02 TeV DOI: 10.1016/j.physletb.2015.12.010Phys.Lett. B753 (2016) 126-139

[102] Alice Collab., Search for weakly decaying Λn¯ and ΛΛ exotic bound states in central Pb-Pb colli-sions at √sNN=2.76 TeV DOI: 10.1016/j.physletb.2015.11.048Phys.Lett. B752 (2016) 267-277

[103] Alice Collab., Centrality dependence of the nuclear modification factor of charged pions, kaons, and protons in Pb-Pb collisions at √sNN=2.76 TeV DOI: 10.1103/PhysRevC.93.034913Phys.Rev. C93 (2016) no.3, 034913

[104] Planck Collab., Planck intermediate results. XL-VII. Planck constraints on reionization history DOI: 10.1051/0004-6361/201628897 Astron.Astrophys. 596 (2016) A108

[105] Planck Collab., Planck intermediate results. XLVI. Reduction of large-scale systematic effects in HFI polarization maps and estimation of the reionization optical depth DOI: 10.1051/0004-6361/201628890Astron.Astrophys. 596 (2016) A107

[106] Planck Collab., Planck intermediate results. XLIV. The structure of the Galactic magnetic field from dust polarization maps of the southern Galactic cap DOI: 10.1051/0004-6361/201628636 Astron.Astrophys. 596 (2016) A105

[107] Planck Collab., Planck intermediate results. XLIII. The spectral energy distribution of dust in clusters of galaxiesDOI: 10.1051/0004-6361/201628522Astron.Astrophys. 596 (2016) A104

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| DISCOVERY CENTER FOR PARTICLE PHYSICS36

[108] Planck Collab., Planck intermediate re-sults. XLII. Large-scale Galactic magnetic fields DOI: 10.1051/0004-6361/201528033 Astron.Astrophys. 596 (2016) A103

[109] Planck Collab., Planck intermediate results. XLI. A map of lensing-induced B-modes DOI: 10.1051/0004-6361/201527932Astron.Astrophys. 596 (2016) A102

[110] Planck Collab., Planck intermediate results. XL. The Sunyaev-Zeldovich signal from the Virgo cluster DOI: 10.1051/0004-6361/201527743 Astron.Astrophys. 596 (2016) A101

[111] Planck Collab., Planck 2015 results. XII. Full Focal Plane simulations DOI: 10.1051/0004-6361/201527103Astron.Astrophys. 594 (2016) A12

[112] Planck Collab., Planck 2015 results. XI. CMB power spectra, likelihoods, and robustness of parameters DOI: 10.1051/0004-6361/201526926 Astron.Astrophys. 594 (2016) A11

[113] Planck Collab., Planck 2015 results. XXVI. The Second Planck Catalogue of Compact Sources DOI: 10.1051/0004-6361/201526914 Astron.Astrophys. 594 (2016) A26

[114] Planck Collab., Planck 2015 results. XVI. Isot-ropy and statistics of the CMB DOI: 10.1051/0004-6361/201526681Astron.Astrophys. 594 (2016) A16

[115] Planck Collab., Planck 2015 results. XXV. Dif-fuse low-frequency Galactic foregrounds DOI: 10.1051/0004-6361/201526803 Astron.Astrophys. 594 (2016) A25

[116] Planck Collab., Planck 2015 results. V. LFI calibration DOI: 10.1051/0004-6361/201526632Astron.Astrophys. 594 (2016) A5

[117] Planck Collab., Planck intermediate results. XXXVIII. E- and B-modes of dust polarization from the magnetized filamentary structure of the interstellar medium DOI: 10.1051/0004-6361/201526506Astron.Astrophys. 586 (2016) A141

[118] Planck Collab., Planck intermediate results - XXXVI. Optical identification and redshifts of Planck SZ sources with telescopes at the Canary Islands observatoriesDOI: 10.1051/0004-6361/201526345Astron.Astrophys. 586 (2016) A139

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[119] Planck Collab., Planck intermediate results. XXXVII. Evidence of unbound gas from the kinetic Sunyaev-Zeldovich effectDOI: 10.1051/0004-6361/201526328Astron.Astrophys. 586 (2016) A140

[120] Planck Collab., Planck 2015 results. IX. Diffuse component separation: CMB maps DOI: 10.1051/0004-6361/201525936Astron.Astrophys. 594 (2016) A9

[121] Planck Collab., Planck 2015 results. XX. Con-straints on inflationDOI: 10.1051/0004-6361/201525898Astron.Astrophys. 594 (2016) A20

[122] Planck Collab., Planck 2015 results. XXVIII. The Planck Catalogue of Galactic Cold Clumps DOI: 10.1051/0004-6361/201525819 Astron.Astrophys. 594 (2016) A28

[123] Planck Collab., Planck 2015 results VII. High Frequency Instrument data processing: Time-ordered informa-tion and beamsDOI: 10.1051/0004-6361/201525844Astron.Astrophys. 594 (2016) A7

[124] Planck Collab., Planck 2015 results. XXVII. The Second Planck Catalogue of Sunyaev-Zeldovich Sources DOI: 10.1051/0004-6361/201525823Astron.Astrophys. 594 (2016) A27

[125] Planck Collab., Planck 2015 results. XXIV. Cosmology from Sunyaev-Zeldovich cluster counts DOI: 10.1051/0004-6361/201525833Astron.Astrophys. 594 (2016) A24

[126] Planck Collab., Planck 2015 results. XXII. A map of the thermal Sunyaev-Zeldovich effect DOI: 10.1051/0004-6361/201525826 Astron.Astrophys. 594 (2016) A22

[127] Planck Collab., Planck 2015 results. XXI. The integrated Sachs-Wolfe effect DOI: 10.1051/0004-6361/201525831Astron.Astrophys. 594 (2016) A21

[128] Planck Collab., Planck 2015 results. XIX. Con-straints on primordial magnetic fields DOI: 10.1051/0004-6361/201525821Astron.Astrophys. 594 (2016) A19

[129] Planck Collab., Planck 2015 results - XVIII. Background geometry and topology of the Universe DOI: 10.1051/0004-6361/201525829 Astron.Astrophys. 594 (2016) A18

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| DISCOVERY CENTER FOR PARTICLE PHYSICS38

[130] Planck Collab., Planck 2015 results. XVII. Constraints on primordial non-Gaussianity DOI: 10.1051/0004-6361/201525836 Astron.Astrophys. 594 (2016) A17

[131] Planck Collab., Planck 2015 results. XV. Gravi-tational lensing DOI: 10.1051/0004-6361/201525941 Astron.Astrophys. 594 (2016) A15

[132] Planck Collab., Planck 2015 results. XIV. Dark energy and modified gravity DOI: 10.1051/0004-6361/201525814Astron.Astrophys. 594 (2016) A14

[133] Planck Collab., Planck 2015 results. XIII. Cos-mological parametersDOI: 10.1051/0004-6361/201525830Astron.Astrophys. 594 (2016) A13

[134] Planck Collab., Planck 2015 results. X. Dif-fuse component separation: Foreground maps DOI: 10.1051/0004-6361/201525967 Astron.Astrophys. 594 (2016) A10

[135] Planck Collab., Planck 2015 results. VIII. High Frequency Instrument data processing: Calibration and mapsDOI: 10.1051/0004-6361/201525820Astron.Astrophys. 594 (2016) A8

[136] Planck Collab., Planck 2015 results. VI. LFI mapmaking DOI: 10.1051/0004-6361/201525813 Astron.Astrophys. 594 (2016) A6

[137] Planck Collab., Planck 2015 results. IV. Low Frequency Instrument beams and window functions DOI: 10.1051/0004-6361/201525809 Astron.Astrophys. 594 (2016) A4

[138] Planck Collab., Planck 2015 results - II. Low Frequency Instrument data processings DOI: 10.1051/0004-6361/201525818Astron.Astrophys. 594 (2016) A2

[139] Planck Collab., Planck 2015 results. I. Overview of products and scientific results DOI: 10.1051/0004-6361/201527101Astron.Astrophys. 594 (2016) A1

[140] Planck Collab., Planck intermediate results. XXXIV. The magnetic field structure in the Rosette Nebula DOI: 10.1051/0004-6361/201525616 Astron.Astrophys. 586 (2016) A137

[141] Planck Collab., Planck intermediate results. XXXIII. Signature of the magnetic field geometry of inter-stellar filaments in dust polarization maps DOI: 10.1051/0004-6361/201425305 Astron.Astrophys. 586 (2016) A136

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[142] Planck Collab., Planck intermediate results. XXXII. The relative orientation between the magnetic field and structures traced by interstellar dust DOI: 10.1051/0004-6361/201425044 Astron.Astrophys. 586 (2016) A135

[143] Planck Collab., Planck intermediate results. XXXI. Microwave survey of Galactic supernova remnants DOI: 10.1051/0004-6361/201425022 Astron.Astrophys. 586 (2016) A134

[144] Planck Collab., Planck intermediate results. XXIX. All-sky dust modelling with Planck, IRAS, and WISE observationsDOI: 10.1051/0004-6361/201424945Astron.Astrophys. 586 (2016) A132

[145] Planck Collab., Planck intermediate results. XXX. The angular power spectrum of polarized dust emis-sion at intermediate and high Galactic latitudesDOI: 10.1051/0004-6361/201425034Astron.Astrophys. 586 (2016) A133

[146] Planck Collab., Planck intermediate results. XXXV. Probing the role of the magnetic field in the forma-tion of structure in molecular clouds DOI: 10.1051/0004-6361/201525896 Astron.Astro-phys. 586 (2016) A138

[147] IceCube and MAGIC and VERITAS Col-laborations, Very High-Energy Gamma-Ray Follow-Up Program Using Neutrino Triggers from IceCube DOI: 10.1088/1748-0221/11/11/P11009JINST 11 (2016) no.11, P11009

[148] IceCube Collab., Observation and Characteriza-tion of a Cosmic Muon Neutrino Flux from the Northern Hemisphere using six years of IceCube data DOI: 10.3847/0004-637X/833/1/3Astrophys.J. 833 (2016) no.1, 3

[149] IceCube Collab., Constraints on ultra-high-energy cosmic ray sources from a search for neutrinos above 10 PeV with IceCube DOI: 10.1103/PhysRevLett.117.241101Phys.Rev.Lett. 117 (2016) no.24, 241101

[150] IceCube Collab., Search for Sources of High-Energy Neutrons with four Years of Data from the IceTop Detector DOI: 10.3847/0004-637X/830/2/129Astrophys.J. 830 (2016) no.2, 129

[151] IceCube Collab., All-flavour Search for Neutrinos from Dark Matter Annihilations in the Milky Way with IceCube/DeepCore DOI: 10.1140/epjc/s10052-016-4375-3Eur.Phys.J. C76 (2016) no.10, 531

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[152] IceCube Collab., Neutrino oscillation studies with IceCube-DeepCore DOI: 10.1016/j.nuclphysb.2016.03.028Nucl.Phys. B908 (2016) 161-177

[153] IceCube Collab., Searches for Sterile Neutrinos with the IceCube Detector DOI: 10.1103/PhysRevLett.117.071801Phys.Rev.Lett. 117 (2016) no.7, 071801

[154] IceCube Collab., Lowering IceCube’s Energy Threshold for Point Source Searches in the Southern Sky DOI: 10.3847/2041-8205/824/2/L28Astrophys.J. 824 (2016) no.2, L28

[155] IceCube Collab., Anisotropy in Cosmic-ray Ar-rival Directions in the Southern Hemisphere Based on six Years of Data From the Icecube Detector DOI: 10.3847/0004-637X/826/2/220Astrophys.J. 826 (2016) no.2, 220

[156] IceCube Collab., High-energy Neutrino follow-up search of Gravitational Wave Event GW150914 with ANTARES and IceCube DOI: 10.1103/PhysRevD.93.122010 Phys.Rev. D93 (2016) no.12, 122010

[157] IceCube Collab., An All-Sky Search for Three Flavors of Neutrinos from Gamma-Ray Bursts with the IceCube Neutrino Observatory DOI: 10.3847/0004-637X/824/2/115 Astrophys.J. 824 (2016) no.2, 115

[158] IceCube Collab., Improved limits on dark matter annihilation in the Sun with the 79-string IceCube detector and implications for supersymmetryDOI: 10.1088/1475-7516/2016/04/022 JCAP 1604 (2016) no.04, 022

[159] IceCube Collab., Search for correlations be-tween the arrival directions of IceCube neutrino events and ultrahigh-energy cosmic rays detected by the Pierre Auger Observatory and the Telescope Array DOI: 10.1088/1475-7516/2016/01/037 JCAP 1601 (2016) no.01, 037

[160] IceCube Collab., The First Combined Search for Neutrino Point-sources in the Southern Hemisphere With the Antares and Icecube Neutrino TelescopesDOI: 10.3847/0004-637X/823/1/65 Astrophys.J. 823 (2016) no.1, 65

[161] IceCube Collab., Searches for Relativistic Mag-netic Monopoles in IceCube DOI: 10.1140/epjc/s10052-016-3953-8 Eur.Phys.J. C76 (2016) no.3, 133

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[162] IceCube Collab., IceCube Results and PINGU Perspectives DOI:10.1016/j.nuclphysbps.2015.06.056 Nucl.Part.Phys.Proc. 265-266 (2015) 215-220

[163] IceCube Collab., Search for Astrophysical Tau Neutrinos in Three Years of IceCube Data DOI: 10.1103/PhysRevD.93.022001 Phys.Rev. D93 (2016) no.2, 022001

[164] IceCube Collab., Search for Transient Astrophysi-cal Neutrino Emission with IceCube-DeepCore DOI: 10.3847/0004-637X/816/2/75 Astrophys.J. 816 (2016) no.2, 75

[165] IceCube Collab., Characterization of the Atmo-spheric Muon Flux in IceCube DOI:10.1016/j.astropartphys.2016.01.006 Astropart.Phys. 78 (2016) 1-27

[166] Pavel Naselsky, Hao Liu, Andrew Jackson, Understanding the LIGO GW150914 eventDOI: 10.1088/1475-7516/2016/08/029 JCAP 1608 (2016) no.08, 029

[167] Sebastian von Hausegger, Hao Liu, Philipp Mertsch, Subir Sarkar, Footprints of Loop I on Cosmic Microwave Background Maps DOI: 10.1088/1475-7516/2016/03/023 JCAP 1603 (2016) no.03, 023

[168] Florian Loebbert, Christoph Sieg, Matthias Wilhelm, Gang Yang, Two-Loop SL(2) Form Factors and Maximal Transcendentality DOI: 10.1007/JHEP12(2016)090 JHEP 1612 (2016) 090

[169] Christian Baadsgaard, N.E.J. Bjerrum-Bohr, Jacob L. Bourjaily, Poul H. Damgaard, String-Like Dual Models for Scalar Theories DOI: 10.1007/JHEP12(2016)019 JHEP 1612 (2016) 019

[170] N.E.J. Bjerrum-Bohr, John F. Donoghue, Barry R. Holstein, Ludovic Plante, Pierre Van-hove,Light-like Scattering in Quantum Gravity DOI: 10.1007/JHEP11(2016)117 JHEP 1611 (2016) 117

[171] Simon Caron-Huot , Lance J. Dixon, An-drew McLeod, Matt von Hippel, Bootstrapping a Five-Loop Amplitude Using Steinmann Relations DOI:10.1103/PhysRevLett.117.241601 Phys.Rev.Lett. 117 (2016) no.24, 241601

[172] Jacob L. Bourjaily, Paul Heslop, Vuong-Viet Tran, Amplitudes and Correlators to Ten Loops Using Simple, Graphical Bootstraps DOI: 10.1007/JHEP11(2016)125 JHEP 1611 (2016) 125

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[173] N.E.J. Bjerrum-Bohr, Jacob L. Bourjaily, Poul H. Damgaard, Bo Feng, Manifesting Color-Kinematics Duality in the Scattering Equation Formalism DOI: 10.1007/JHEP09(2016)094 JHEP 1609 (2016) 094

[174] Simon Caron-Huot, Matthias Wilhelm, Renormalization group coefficients and the S-matrix DOI: 10.1007/JHEP12(2016)010 JHEP 1612 (2016) 010

[175] Jacob L. Bourjaily, Sebastian Franco, Daniele Galloni, Congkao Wen, Stratifying On-Shell Cluster Varieties: the Geometry of Non-Planar On-Shell Diagrams |DOI: 10.1007/JHEP10(2016)003 JHEP 1610 (2016) 003

[176] Rafael F. Lang, Christopher McCabe, Shayne Reichard, Marco Selvi, Irene Tamborra, Supernova neutrino physics with xenon dark matter detectors: A timely perspective DOI: 10.1103/PhysRevD.94.103009 Phys.Rev. D94 (2016) no.10, 103009

[177] Laure Berthier, Mikkel Bjørn, Michael Trott, Incorporating doubly resonant W± data in a global fit of SMEFT parameters to lift flat directionsDOI: 10.1007/JHEP09(2016)157 JHEP 1609 (2016) 157

[178] N.E.J. Bjerrum-Bohr, Jacob L. Bourjaily, Poul H. Damgaard, Bo Feng, Analytic representa-tions of Yang–Mills amplitudes DOI:10.1016/j.nuclphysb.2016.10.012 Nucl.Phys. B913 (2016) 964-986

[179] Aleksey Cherman, David A. McGady, Masahito Yamazaki, Spectral sum rules for confining large-N theories DOI: 10.1007/JHEP06(2016)095 JHEP 1606 (2016) 095

[180] Yun Jiang (Bohr Inst.), Ying-Ying Li, Tao Liu, 750 GeV resonance in the gauged U(1)′ -extended MSSM DOI:10.1016/j.physletb.2016.05.006 Phys.Lett. B759 (2016) 354-360

[181] Jacob L. Bourjaily, Paul Heslop, Vuong-Viet Tran, Perturbation Theory at Eight Loops: Novel Structures and the Breakdown of Manifest Conformality in N=4 Supersymmetric Yang-Mills Theory DOI:10.1103/PhysRevLett.116.191602 Phys.Rev.Lett. 116 (2016) no.19, 191602

[182] Laure Berthier, James M. Cline, William Shepherd, Michael Trott, Effective interpretations of a diphoton excess DOI: 10.1007/JHEP04(2016)084 JHEP 1604 (2016) 084

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[183] P.H. Damgaard, A. Haarr, D. O’Connell, A. Tranberg, Effective Field Theory and Electroweak Baryogenesis in the Singlet-Extended Standard Model DOI: 10.1007/JHEP02(2016)107 JHEP 1602 (2016) 107

[184] Jérémy Bernon, J.F. Gunion, H. E. Haber, Yun Jiang, Sabine Kraml, Scrutinizing the alignment limit in two-Higgs-doublet models. II. mH =125 GeV DOI: 10.1103/PhysRevD.93.035027 Phys.Rev. D93 (2016) no.3, 035027

[185] Aleksandra Drozd, Bohdan Grzadkowski, John F. Gunion, Yun Jiang, Isospin-violating dark-matter-nucleon scattering via two-Higgs-doublet-model portals DOI: 10.1088/1475-7516/2016/10/040 JCAP 1610 (2016) no.10, 040

[186] Christian Baadsgaard , N.E.J. Bjerrum-Bohr, Jacob L. Bourjaily, Simon Caron-Huot, Poul H. Damgaard, Bo Feng, New Representations of the Perturbative S-Matrix DOI:10.1103/PhysRevLett.116.061601 Phys.Rev.Lett. 116 (2016) no.6, 061601

[187] Laure Berthier, Michael Trott, Consistent constraints on the Standard Model Effective Field Theory DOI: 10.1007/JHEP02(2016)069 JHEP 1602 (2016) 069

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