searches&for physics&beyond&the&...

Steven Worm

SEARCHES FOR PHYSICS BEYOND THE STANDARD MODEL

UK HEP Forum

23 November 2012

BSM AND EXOTICA: WHAT IS “EXOTIC”?• Comprehensive search of the landscape of √s = 8 TeV proton collisions

– Unlike Higgs, no “EXO-‐Hunters Guide” to show you the way– no SUSY-‐like plot of parameter space to map out progress

• Wide variety of search strategies used– look for interesCng features in the data – new resonant states e.g. Z’, W’– look at all possible channels for disagreements with expectaCon – leptons, photons, jets– follow-‐up interesCng new BSM models

2[Murayama] [Bachacou]

[TeV]Z’M0.5 1 1.5 2 2.5 3

B [p

b]m

-410

-310

-210

-110

1Expected limit

m 1±Expected m 2±Expected

Observed limitSSMZ’rZ’sZ’

ATLAS

llAZ’ = 7 TeVs

-1 L dt = 5.0 fb0: µµ

-1 L dt = 4.9 fb0ee:

Z’ IN 2011 DATA?

• Many new models have Z-‐like narrow resonances decaying to dileptons

• InteresWng features in dilepton spectra– around 2σ each for CMS & ATLAS in e+μ– similar in scale to 2011 Higgs excess

3

Worth watching in 2012’s 8 TeV data...

[hep-ex 1206.1849]

[ATLAS hep-ex 1209.2535]

[GeV]eem80100 200 300 1000 2000

Even

ts

-310

-210

-1101

10

210

310

410

510

610

710ATLAS

-1 L dt = 4.9 fb0 = 7 TeVs

Data 2011*aZ/

Dibosontt

QCD & W+jetsZ’(1500 GeV)Z’(2000 GeV)

[GeV]µµm 100 200 300 1000 2000

Even

ts

-210

-110

1

10

210

310

410

510

610

710Data 2012

*aZ/

Diboson

ttZ’(1500 GeV)Z’(2000 GeV)

PreliminaryATLAS SearchµµAZ’

-1L dt = 6.1 fb0 = 8 TeVs

STATUS TODAY: Z’ IN 8 TEV DATA

4

• Event selecWon – CMS: ET (e1,e2) > 35 GeV, pT (μ1,μ2) > 45 GeV, plus isolaCon criteria– ATLAS: ET (e1,e2) > 35, 25 GeV, pT (μ1,μ2) > 25 GeV, plus isolaCon criteria

• Backgrounds – Z/γ*, c, tW, VV, Z → ττ, mulCjets with ≥1 jet reconstructed as lepton– esCmated by funcConal fit to data

[ATLAS-CONF-2012-129, CMS EXO-12-015]

No obvious excess observed in 2012 data

Z’ IN 8 TEV DATA

• Short Wme between data-‐taking and result

• CMS limits on the combined 7 + 8 TeV data – M(Z’SSM) > 2590 GeV at 95% C.L.– M(Z’ψ) > 2260 GeV at 95% C.L.

5Excess just below 1 TeV all but gone...

[TeV]Z’M0.5 1 1.5 2 2.5 3

B [p

b]m

-410

-310

-210

-110

1Expected limit

m 1±Expected m 2±Expected

Observed limitSSMZ’rZ’sZ’

PreliminaryATLAS

llAZ’ = 8 TeVs

-1 L dt = 6.1 fb0: µµ

-1 L dt = 5.9 fb0ee:

[ATLAS-CONF-2012-129, CMS EXO-12-015]

M(Z’SSM) expected observedCMS > 2.6 TeV > 2.6 TeVATLAS > 2.5 TeV > 2.5 TeV

) [GeV]missTE, had-viso, had-viso(tot

Tm

0 500 1000 1500

Even

ts /

50 G

eV

-310

-210

-110

1

10

210

310

410 ATLAS-1L dt = 4.6 fb0

= 7 TeVs

(a) Data 2011Multijet

ooA*a/ZioAW

OthersooA(1250)Z’

Z’ ➞ τ τ

• Z’ might couple preferenWally to third-‐generaWon fermions– 5 l-‐1 at √s = 7 TeV – Study: τeτμ, τeτh, τμτh, τhτh– plot effecCve (visible) mass

• Backgrounds: – DY Z → ττ, W+jets, c, VV, QCD– esCmated from data where possible

6

) (GeV)T

miss,Ehτ,

hτ M(

0 200 400 600 800 1000

Eve

nts

/ 2

0 G

eV

-210

-110

1

10

210

310-1

= 7 TeV, 4.94 fbs(d) CMS, Data

hτ

hτ →(750) SSMZ'

τ τ →Z

ee→Z W+jets

QCD

(GeV)Z'M400 600 800 1000 1200 1400 1600

) (p

b)

ττ

→ B

R(Z

'×

Z')

→(p

pσ

-310

-210

-110

1

10

210-1

= 7 TeV, 4.94 fbs CMS,

Obs. Combined 95% CL

Exp. Combined 95% CL

expected rangeσ1

expected rangeσ2

SSMZ'

ψZ'

M(Z’SSM) expected observedCMS > 1.1 TeV > 1.4 TeVATLAS > 1.4 TeV > 1.4 TeV

[CMS EXO-11-031, hep-ex 1206.1725] [ATLAS hep-ex 1210.6604]

[GeV]Z’m500 1000 1500

) [pb

]oo

AZ’(

BR ×) Z’

App(

m

-310

-210

-110

1

ATLAS-1L dt = 4.6 fb0 = 7 TeVs

Channels combined

(b) Expected limitm 1±Expected m 2±Expected

Observed limitSSMZ’

th. uncert.SSMZ’

W’ ➞ lν IN 8 TEV DATA

• Search for a new heavy gauge boson W' decaying to a charged lepton (µ or e) and ν

• Many models possible– right-‐handed W' bosons with standard-‐model couplings– let-‐handed W' bosons including interference – Kaluza-‐Klein W'KK-‐states in split-‐UED– Excited chiral boson (W*)

• Event SelecWon and Backgrounds– back-‐to-‐back isolated lepton and ETmiss

– Plot transverse mass of lν system– backgrounds from W, QCD, c+single t, DY, VV from data

7

No significant excess observed

muon

electron

[CMS PAS EXO-12-010]

[GeV]W’ m

500 1000 1500 2000 2500 3000

B [

pb

]!

-310

-210

-110

1

NNLO theory

Observed limit

Expected limit

! 1±Expected

! 2±Expected

= 7 TeV,s " -1 = 7 TeV, Ldt = 4.7 fbs

# e $W’

ATLAS

W’ ➞ lν IN 7 AND 8 TEV

8

M(W’SSM) 95% CL Luminosity Expected ObservedATLAS e+µ, 2011 4.7 > 2.55 TeV > 2.55 TeVCMS e+µ, 2012 3.7 > 2.80 TeV > 2.85 TeVCMS e+µ, 2011+2012 5.0 + 3.7 > 2.85 TeV > 2.85 TeV

[CMS PAS EXO-12-010][ATLAS hep-ex 1209.4446]

7 TeV 2011

8 TeV 2012

2000 3000 40001

10

210

310

410

510 DataBackground

[GeV]jjReconstructed m2000 3000 4000

Even

tsSi

gnifi

canc

e

-2

0

2

ATLAS Preliminary

-1 = 13.0 fbdt L 0 = 8 TeVs

DIJETS IN 8 TEV DATA

• Search for dijet resonance in smoothly falling mass spectrum– leading jet mass mjj > 0.9-‐1 TeV from trigger and other constraints– Background esCmated from smooth funcConal fit

9

[CMS PAS EXO-12-016][ATLAS-CONF-2012-148]

CMS Preliminary (4 e-‐1)

DIJETS IN 8 TEV DATA

10

M(q*) 95% CL Luminosity Expected ObservedATLAS 2011 4.8 > 3.09 TeV > 3.55 TeVCMS 2011 5.0 > 3.27 TeV > 3.05 TeVCMS 2012 4.0 > 3.43 TeV > 3.19 TeVATLAS 2012 13.0 > 3.70 TeV > 3.84 TeV


Mass [GeV]2000 3000 4000

[pb

]×

m

-310

-210

-110

1

10

210

310 8YTHIAq* P

Observed 95% CL upper limitExpected 95% CL upper limit68% and 95% bands

ATLAS Preliminary-1 = 5.8 fbdt L

0 = 8 TeVs

Mass [GeV]2000 3000 4000 5000

[pb

]×

m

-310

-210

-110

1

10

210

310q* MC12Observed 95% CL upper limitExpected 95% CL upper limit68% and 95% bands

ATLAS Preliminary-1 = 13.0 fbdt L

0 = 8 TeVs

[ATLAS-CONF-2012-148]

CMS

gg Resonance Mass (GeV)550 600 650 700 750 800 850 900 950 1000 1050

(p

b)

A !

B !

Cro

ss S

ect

ion

1

10

210

310

)-1CMS Preliminary (0.13 fb

= 7 TeVs

Wide jets

Observed 95% CL Upper Limit

Expected 95% CL Upper Limit

" 1±Expected Limit

" 2±Expected Limit

s8 Resonance

LOW-MASS DIJETS

• Lower dijet mass from trigger sample

• HT > 350 GeV or m(dijet) > 400 GeV and |Δηj| < 2

11

/dm

(pb/G

eV

)!d

-610

-510

-410

-310

-210

-110

1

10

210)-1CMS Preliminary (0.13 fb

Fit

QCD Pythia

Jet Energy Scale Uncertainty

= 7 TeVs | < 1.3"#| < 2.5, |"|

Wide Jets

W’ (0.7 TeV)

D (0.7 TeV)

D (1.5 TeV)

Dijet Mass (GeV)500 1000 1500 2000 2500 3000

Resi

duals

-2-1012

qq Resonance Mass (GeV)550 600 650 700 750 800 850 900 950 1000 1050

(p

b)

A !

B !

Cro

ss S

ect

ion

1

10

210

)-1CMS Preliminary (0.13 fb

= 7 TeVs

Wide jets

Observed 95% CL Upper Limit

Expected 95% CL Upper Limit

" 1±Expected Limit

" 2±Expected Limit

Diquark6E

W’

Z’

Low masses of great interest, are being probed

• Dijet with 1, 2 W/Z-‐tags– jet substructure used for tagging– single tags: qW/qZ resonances– double tags: WW/WZ/ZZ resonances

DIJET WITH b-TAG DIJET WITH W/Z TAGS

• Dijet with 0, 1, 2 b-‐tags– model-‐independent limits vs. BR– Simultaneous search in 0, 1 and 2 b-‐tags

12

[CMS hep-ex 1210.2387] [CMS PAS EXO-11-095]

Resonance Mass [GeV]1000 2000 3000 4000

[pb]

A×jj)

→(XB×

σ

-310

-210

-110

1

10

Observed 95% CL Upper Limits = 0.2bbf = 0.5bbf = 0.75bbf = 1.0bbf

0.2)≈ bb

Z’ (f 1.0)≈

bb (fbS8

jj)→(XB)bb→(XB = bbf

qq/bbCMS -1L = 5 fb = 7 TeVs

| < 1.3ηΔ| < 2.5, |η|Wide Jets

0, 1 and 2 b-tags

m(llj) [GeV]500 1000 1500 2000 2500 3000

Even

ts /

50 G

eV

1

10

210

310DataZ+jetsWW/WZ/ZZtt

W+jets = 1400 GeVG*m

100× G*m

ATLAS Preliminary-1Ldt = 7.2 fb0 = 8 TeV , s

µµ A ee + ZAZMerged Selection

RESONANT ZZ PRODUCTION

• Search for resonant ZZ producWon ZZ ➞ llqq (l=e,μ)

• No significant deviaWon of diboson mass on a smoothly falling background

• For k/Mpl = 1.0, 95% observed (expected) lower limit on the graviton mass of 850 (870) GeV

13

210×6 310 310×2

Even

ts

1

10

210

310

410DataBackground

Merged Selection

m(llj) [GeV]210×6 310 310×2Si

gnifi

canc

e-101

ATLAS Preliminary

-1dt = 7.2 fb L 0 = 8 TeVs

[GeV]G*m400 600 800 1000 1200 1400 1600 1800 2000

ZZ

) [pb

]A

BR(

G*

× G

*) A

(pp

m

-210

-110

1

= 1.0Planck/mgRS Graviton, Observed 95% Upper LimitExpected 95% Upper Limit

m1 ±

m2 ±

ATLAS Preliminary-1Ldt = 7.2 fb0 = 8 TeV ,s


BLACK HOLES IN 8 TEV DATA

• HypotheWcal BH would evaporate into many high-‐pT objects – EsCmate by ST, the pT sum of physics objects with pT > 50 GeV

• Main background of QCD esWmated by fit to n=2 distribuWon– Normalised for each mulCplicity bin separately at ST = 1.8–2.2 TeV– Model-‐independent limits vs ST and mulCplicity

14

Large improvement in sensiFvity (~10-‐20%) with respect to 2011 analysis


8-JET EVENT, ST = 3 TEV

15

HEAVY NEUTRINO IN 8 TEV

• We search for the decay of WR ➞ μμjj and eejj, as in a Lev-‐Right Symmetric Model

• SelecWon– Lepton pT >60/40 GeV, moCvated by W decay– Jet pT > 40 GeV– M(ll) > 200 GeV to reduce DY+jets.

• Background – Top: data-‐driven from eμjj– DY+jets: normalised to data, MC shape in Z peak– QCD: data-‐driven fake rate – VV, Single top: from MC

16


HEAVY NEUTRINO IN 8 TEV DATA

• Search assumes small WR-WL and Nl-Nl’ mixing angles, only one lepton channel kinematically accessible

• Primary SystemaWc UncertainWes– Signal Eff.: 6-‐10% from lepton – Background: ~50% from DY+jets shape, ~16% from top shape

17

For M(N)=M(WR)/2; M(WR) > 2.8 TeV


EXCITED LEPTONS

• Search for excited e and µ in the electromagneWc radiaWve decay channel l* → lγ– ProducCon via qq → l±∗l∓ or in pairs via qq → l±∗l∓∗, yielding final state llγ.

– ET (e1,e2) > 40, 30 GeV, pT (μ1,μ2) > 25 GeV, plus isolaCon, – mll > 110 GeV to suppress Drell-‐Yan

• No evidence for signal, limits on the compositeness scale Λ vs. ml*. – For Λ = ml* , both excited e and µ masses below 2.2 TeV are excluded at 95% CL.

18

[GeV]aem100 200 300 400 500 600 700 800 900

pai

rs /

50 G

eVae

-110

1

10

210

310

410Data 2012

aZ + tZ + jets, diboson, t

Bkg. uncertainty) = (0.2, 10) TeVR,

e*(m

) = (0.5, 10) TeVR, e*

(m) = (0.8, 10) TeVR,

e*(m

PreliminaryATLAS

= 8 TeVs

-1 L dt = 13 fb0

[TeV]e*m0.5 1 1.5 2 2.5

) [fb

] a

eA

B(e

* m

1

10

210Observed limitExpected limit

m1 ±Expected m2 ±Expected

= 2.5 TeVR

= 5.0 TeVR

= 12.0 TeVR

PreliminaryATLAS

= 8 TeVs0 -1L dt = 13 fb

MAGNETIC MONOPOLES

• MagneWc charge g yields strong coupling αm and very high ionisaWon

• Look for high ionisaWon in TransiWon RadiaWon Tracker and high hit fracWon (fHT) and also deposiWon in the Liquid Argon ElectromagneWc Calorimeter

• Pair-‐produced (Drell-‐Yan) producWon

19

Cross SecFon limits set for m(M) = 0.2–1.2 TeV


dE/dx (MeV/cm)0 2 4 6 8 10 12 14

Hits

(arb

itrar

y sc

ale)

0

1000

2000

3000

4000

5000

q=1q=2/3q=1/3

= 7 TeVsCMS Simulation,

FRACTIONALLY CHARGED PARTICLES

• Search for long-‐lived parWcles with fracWonal charge

• Backgrounds – Cosmics: esCmate from dxy sidebands– Collisions: using Z→μμ data, fit Nhits with low dE/dx

• Assume lepton-‐like spin=1/2 parWcle masses

20hits with dE/dx < 2 MeV/cm0 1 2 3 4 5 6≥

Even

ts

-110

1

10

210

310

410

510

610

signal sample datactrl sample datafit to ctrl sample

-1=7 TeV, 5.0 fbsCMS Preliminary,


Exclude:

,

Q= e⁄3: m > 210 GeV, Q=2e⁄3: m > 330 GeV

HEAVY RESONANCE TO LONG-LIVED

• Search in leptonic channels for heavy resonances (H0) decaying to long-‐lived neutral parWcles (H0 → XX, X → l±l∓)– Good track reconstrucCon efficiency out to d0 ≈ 30 cm.– Four candidates in ee (2 in the Z mass region), no candidates in µµ�

• No evidence for new physics, limits vs. cτ set for mH from 200 to 1000 GeV/c2 and mX from 20 to 350 GeV/c2

• SensiWvity also to H0 at 125 GeV/c2, in the range of 10-‐100 e.

21

GMSB WITH DISPLACED PHOTON

• GMSB (SUSY) decays typically include many jets and

• SelecWon: photon with ET > 100, three jets with pT > 35– relaxed ECAL Cming and shower-‐shape cuts– ETmiss and ECAL Cming main discriminants

22

Much-‐improved sensiFvity to long-‐lived neutralino


[E

vent

s/G

eV]

Tmis

sdN

/dE

-110

1

10

210

310

410data 2012Total BG

) + jetsii AZ ( ) + jetsi l AW (

ll ) + jetsAZ ( Dibosons

+ single toptt

-1 Ldt=10.5fb0 = 8 TeVs

ATLAS Preliminary

[E

vent

s/G

eV]

Tmis

sdN

/dE

-110

1

10

210

310

410

[GeV]TmissE

200 400 600 800 1000 1200

Dat

a / B

G

0.51

1.5

[GeV]missTE

150 200 250 300 350 400 450 500

Even

ts /

GeV

-310

-210

-110

1

10

210 = 7 TeV)sData 2011 (

a)+iiAZ(aW/Z+

W/Z+jet+jet, multi-jet, dibosonatop,

Total background=1.0 TeVDADD, n=2, M=10 GeV, M =400 GeV

rWIMP, D5, m

*

-1L dt = 4.6 fb0

ATLAS Preliminary

[GeV]missTE

150 200 250 300 350 400 450 500

Even

ts /

GeV

-310

-210

-110

1

10

210

MONOJET AND MONOPHOTON

• Look for missing energy and radiated jet (photon)

• Monojet SelecWon:– Leading jet pT > 120 GeV, |η| < 2– allow a second jet if not back-‐to-‐back– veto isolated leptons

• Backgrounds and UncertainWes– Z + (jets/γ) -‐-‐> νν+(jets/γ)– W + (jets/γ) -‐-‐> lν+(jets/γ)– smaller backgrounds from top, QCD, non-‐collision

• Missing Energy (ETmiss) to disWnguish signal

23

4

q

q̄

�

�̄

Figure 1: Dark matter production in association with a single jet in a hadron collider.

3.1. Comparing Various Mono-Jet Analyses

Dark matter pair production through a diagram like figure 1 is one of the leading channelsfor dark matter searches at hadron colliders [3, 4]. The signal would manifest itself as an excessof jets plus missing energy (j + /ET ) events over the Standard Model background, which consistsmainly of (Z ! ⌫⌫)+ j and (W ! `inv⌫)+ j final states. In the latter case the charged lepton ` islost, as indicated by the superscript “inv”. Experimental studies of j + /ET final states have beenperformed by CDF [22], CMS [23] and ATLAS [24, 25], mostly in the context of Extra Dimensions.

Our analysis will, for the most part, be based on the ATLAS search [25] which looked for mono-jets in 1 fb�1 of data, although we will also compare to the earlier CMS analysis [23], which used36 pb�1 of integrated luminosity. The ATLAS search contains three separate analyses based onsuccessively harder pT cuts, the major selection criteria from each analysis that we apply in ouranalysis are given below.3

LowPT Selection requires /ET > 120 GeV, one jet with pT (j1) > 120 GeV, |⌘(j1

)| < 2, and eventsare vetoed if they contain a second jet with pT (j2) > 30 GeV and |⌘(j

2

)| < 4.5.

HighPT Selection requires /ET > 220 GeV, one jet with pT (j1) > 250 GeV, |⌘(j1

)| < 2, and eventsare vetoed if there is a second jet with |⌘(j

2

)| < 4.5 and with either pT (j2) > 60 GeV or��(j

2

, /ET ) < 0.5. Any further jets with |⌘(j2

)| < 4.5 must have pT (j3) < 30 GeV.

veryHighPT Selection requires /ET > 300 GeV, one jet with pT (j1) > 350 GeV, |⌘(j1

)| < 2, andevents are vetoed if there is a second jet with |⌘(j

2

)| < 4.5 and with either pT (j2) > 60 GeVor ��(j

2


)| < 4.5 must have pT (j3) < 30 GeV.

In all cases events are vetoed if they contain any hard leptons, defined for electrons as |⌘(e)| < 2.47and pT (e) > 20 GeV and for muons as |⌘(µ)| < 2.4 and pT (µ) > 10 GeV.

The cuts used by CMS are similar to those of the LowPT ATLAS analysis. Mono-jet eventsare selected by requiring /ET > 150 GeV and one jet with pT (j1) > 110 GeV and pseudo-rapidity|⌘(j

1

)| < 2.4. A second jet with pT (j2) > 30 GeV is allowed if the azimuthal angle it forms withthe leading jet is ��(j

1

, j2

) < 2.0 radians. Events with more than two jets with pT > 30 GeV arevetoed, as are events containing charged leptons with pT > 10 GeV. The number of expected andobserved events in the various searches is shown in table I.

3 Both ATLAS and CMS impose additional isolation cuts, which we do not mimic in our analysis for simplicity andsince they would not have a large impact on our results.

4

q

q̄

�

�̄

Figure 1: Dark matter production in association with a single jet in a hadron collider.

3.1. Comparing Various Mono-Jet Analyses

Dark matter pair production through a diagram like figure 1 is one of the leading channelsfor dark matter searches at hadron colliders [3, 4]. The signal would manifest itself as an excessof jets plus missing energy (j + /ET ) events over the Standard Model background, which consistsmainly of (Z ! ⌫⌫)+ j and (W ! `inv⌫)+ j final states. In the latter case the charged lepton ` islost, as indicated by the superscript “inv”. Experimental studies of j + /ET final states have beenperformed by CDF [22], CMS [23] and ATLAS [24, 25], mostly in the context of Extra Dimensions.

Our analysis will, for the most part, be based on the ATLAS search [25] which looked for mono-jets in 1 fb�1 of data, although we will also compare to the earlier CMS analysis [23], which used36 pb�1 of integrated luminosity. The ATLAS search contains three separate analyses based onsuccessively harder pT cuts, the major selection criteria from each analysis that we apply in ouranalysis are given below.3

LowPT Selection requires /ET > 120 GeV, one jet with pT (j1) > 120 GeV, |⌘(j1

)| < 2, and eventsare vetoed if they contain a second jet with pT (j2) > 30 GeV and |⌘(j

2

)| < 4.5.

HighPT Selection requires /ET > 220 GeV, one jet with pT (j1) > 250 GeV, |⌘(j1

)| < 2, and eventsare vetoed if there is a second jet with |⌘(j

2

)| < 4.5 and with either pT (j2) > 60 GeV or��(j

2


)| < 4.5 must have pT (j3) < 30 GeV.

veryHighPT Selection requires /ET > 300 GeV, one jet with pT (j1) > 350 GeV, |⌘(j1

)| < 2, andevents are vetoed if there is a second jet with |⌘(j

2

)| < 4.5 and with either pT (j2) > 60 GeVor ��(j

2


)| < 4.5 must have pT (j3) < 30 GeV.

In all cases events are vetoed if they contain any hard leptons, defined for electrons as |⌘(e)| < 2.47and pT (e) > 20 GeV and for muons as |⌘(µ)| < 2.4 and pT (µ) > 10 GeV.

The cuts used by CMS are similar to those of the LowPT ATLAS analysis. Mono-jet eventsare selected by requiring /ET > 150 GeV and one jet with pT (j1) > 110 GeV and pseudo-rapidity|⌘(j

1

)| < 2.4. A second jet with pT (j2) > 30 GeV is allowed if the azimuthal angle it forms withthe leading jet is ��(j

1

, j2

) < 2.0 radians. Events with more than two jets with pT > 30 GeV arevetoed, as are events containing charged leptons with pT > 10 GeV. The number of expected andobserved events in the various searches is shown in table I.

3 Both ATLAS and CMS impose additional isolation cuts, which we do not mimic in our analysis for simplicity andsince they would not have a large impact on our results.

monojet

monophoton

[ATLAS-CONF-2012-147, ATLAS-CONF-2012-085]

ADD FROM MONOJET AND MONOPHOTON

Large Extra Dimensions: Arkani-‐Hamed, Dimopoulos, Dvali (ADD)

25

MD (ADD) at LO Lumi.

δ=3 δ=3 δ=6 δ=695% CL limits [l-‐1] Exp.

[TeV]Obs. [TeV]

Exp. [TeV]

Obs. [TeV]CMS Monophoton 5.0 1.5 1.6 1.6 1.6

ATLAS Monophoton 4.6 1.7 1.7 1.8 1.9CMS Monojet 5.0 3.1 3.2 2.3 2.4ATLAS Monojet 8TeV 10.5 3.4 3.2 2.7 2.6

]2 [GeV/c!M

-110 1 10 210 310

]2

-Nu

cle

on

Cro

ss S

ect

ion

[cm

!

-4510

-4310

-4110

-3910

-3710

-3510

-3310

-3110CMS MonoJet

CMS MonoPhoton

CDF 2012

XENON-100

CoGeNT 2011

CDMSII 2011

CDMSII 2010

CMS = 7 TeVs

-1L dt = 5.0 fb"

a) Spin Independent

[ GeV ]rWIMP mass m1 10 210 310

]2W

IMP-

nucl

eon

cros

s se

ctio

n [ c

m

-4110

-4010

-3910

-3810

-3710

-3610

-3510

ATLAS , 90%CL-1 = 7 TeV, 4.7 fbs

Spin-dependent

SIMPLE 2011Picasso 2012

Dirac)rr j(AqD8: CDF q

Dirac)rr j(AqD8: CMS q

Dirac)rr j(AqD8: qDirac

)rr j(AqD9: qtheorym-1

[ GeV ]rWIMP mass m1 10 210 310

]2W

IMP-

nucle

on c

ross

sec

tion

[ cm

-4510

-4310

-4110

-3910

-3710

-3510

-3310

-3110

-2910ATLAS , 90%CL-1 = 7 TeV, 4.7 fbs

Spin-independent

XENON100 2012CDMSII low-energyCoGeNT 2010

Dirac)rr j(AqD5: CDF q

Dirac)rr j(AqD5: CMS q

Dirac)rr j(AqD1: q

Dirac)rr j(AqD5: q

Dirac)rr j(AD11: gg

theorym-1

DARK MATTER AND MONOJETS

26


[CMS EXO-11-059]Spin-‐dependent Spin-‐independent

]2 [GeV/c!M

-110 1 10 210 310

]2

-Nu

cle

on

Cro

ss S

ect

ion

[cm

!

-4510

-4310

-4110

-3910

-3710

-3510

-3310

-3110CMS MonoJet

CMS MonoPhoton

CDF 2012

SIMPLE 2010

CDMSII 2011

COUPP 2011

-

W+Super-K W-

W+IceCube W

CMS = 7 TeVs

-1L dt = 5.0 fb"

b) Spin Dependent

CONCLUSIONS

• Tremendous progress in Beyond the Standard Model searches– short Cme from data to results: already have many 8 TeV results– more complete coverage of channels– generic searches, less model dependence– dedicated searches for more challenging signatures– also probing lower in mass, not just pushing for highest exclusion– search techniques ge�ng more sophisCcated; shape-‐based or mulC-‐dimensional– probing direct connecCons to other fields (Higgs, SUSY, Top, Dark Macer, etc)

• For complete results:– hcps://twiki.cern.ch/twiki/bin/view/CMSPublic/PhysicsResultsEXO– hcps://twiki.cern.ch/twiki/bin/view/AtlasPublic/ExoCcsPublicResults

27

Sh. Rahatlou 282

Z’SSM llZ’ SSM tau tau

Z’, ttbar, hadronic, width=1.2%Z’, dijet

Z’, ttbar, lep+jet, width=1.2%Z’SSM ll (fbb=0.2)

G, dijetG, ttbar, hadronic

G jet+MET k/M = 0.2G γγ k/M = 0.1

G, Z(ll)Z(qq), k/M=0.1W’ lν

W’ dijetW’ → td

W’→ WZ(leptonic)WR’ → tb

WR, MNR=MWR/2WKK μ = 10 TeV

ρTC, πTC > 700 GeVString Resonances (qg)

s8 Resonance (gg)s8 Resonance (gg/bb), fbb=1

E6 diquarks (qq)Axigluon/Coloron (qqbar)

gluino, 3jet, RPV0 1 2 3 4 5 6

gluino, Stopped Gluinostop, HSCP

stop, Stopped Gluinostau, HSCP, GMSB

hyper-K, hyper-ρ=1.2 TeVfractional charge, q=2/3efractional charge, q=1/3e

multiple charge, q=2emultiple charge, q=3e

neutralino, ctau=25cm, ECAL time

0 1 2 3 4 5 6

LQ1, β=0.5LQ1, β=1.0LQ2, β=0.5LQ2, β=1.0

LQ3, (bbnunu) Br(LQ → bντ) = 1LQ3, (btau) β=1.0

stop (btau)

0 1 2 3 4 5 6

q* (qg), dijetq* (qW)q* (qZ)

q* , dijet pairq* , boosted Z

e*, Λ = 2 TeVμ*, Λ = 2 TeV

0 1 2 3 4 5 6

Resonances

Compositeness

LongLived

LeptoQuarks

C.I. Λ , Χ analysis, Λ+ LL/RR

C.I. Λ , Χ analysis, Λ- LL/RR

C.I., dimuon, destructve LLIM

C.I., dimuon, constructive LLIM

C.I., single lepton (HnCM)

0 3 6 9 12 15

ContactInteraction

MBH, rotating, MD=3TeV, nED = 2, BlackMax

MBH, non-rot, MD=3TeV, nED = 2, BlackMax

MBH, rotating, loss, MD=3TeV, nED = 2, BlackMax

MBH, boil. remn., MD=3TeV, nED = 2, Charybdis

MBH, stable remn., MD=3TeV, nED = 2, Charybdis

MBH, Quantum BH, MD=3TeV, nED = 2

0 1 2 3 4 5 6

b’ ⇒ tW, (3l, 2l) + b-jetq’, b’/t’ degenerate, Vtb=1

b’ ⇒ tW, l+jetsB’ ⇒ bZ (100%)T’ ⇒ tZ (100%)

t’ ⇒ bW (100%), l+jetst’ ⇒ bW (100%), l+l

0 1 2 3 4 5 6

4thGeneration

BlackHoles

CMS EXOTICA95% CL EXCLUSION LIMITS (TEV)

29Mass scale [TeV]-110 1 10 210

Oth

erEx

cit.

ferm

.Ne

w qu

arks

LQV'

CIEx

tra d

imen

sions

jjmColor octet scalar : dijet resonance, µe

m, µ)=1) : SS eµe→L±± (DY prod., BR(HL

±±H llm), µµll)=1) : SS ee (→

L±± (DY prod., BR(HL

±±H (LRSM, no mixing) : 2-lep + jetsRW

Major. neutr. (LRSM, no mixing) : 2-lep + jets,WZT

mlll), νTechni-hadrons (LSTC) : WZ resonance (µµee/mTechni-hadrons (LSTC) : dilepton, γl

m resonance, γExcited lepton : l-jjmExcited quarks : dijet resonance,

jetγm-jet resonance, γExcited quarks :

llqmVector-like quark : NC, qνlmVector-like quark : CC, )

T2 (dilepton, M0A0 tt + A→Top partner : TT Zb

m Zb+X, →New quark b' : b'b' WtWt→)5/3T

5/3 generation : b'b'(Tth4

WbWb→ generation : t't'th4jjντjj, ττ=1) : kin. vars. in βScalar LQ pair (jjνµjj, µµ=1) : kin. vars. in βScalar LQ pair (jjν=1) : kin. vars. in eejj, eβScalar LQ pair (µT,e/mW* : tb

m tb, SSM) : → (RW'tqm=1) :

R tq, g→W' (

µT,e/mW' (SSM) : ττmZ' (SSM) : µµee/mZ' (SSM) :

,missTEuutt CI : SS dilepton + jets + llm, µµqqll CI : ee &

)jj

m(χqqqq contact interaction : )jjm(

χQuantum black hole : dijet, F T

pΣ=3) : leptons + jets, DM /THMADD BH (ch. part.N=3) : SS dimuon, DM /THMADD BH (

tt,boostedm l+jets, →tt (BR=0.925) : tt →

KKRS g

νlν,lTmRS1 : WW resonance, llll / lljjmRS1 : ZZ resonance,

/ llγγmRS1 : diphoton & dilepton, llm ED : dilepton, 2/Z1S

,missTEUED : diphoton + / llγγmLarge ED (ADD) : diphoton & dilepton,

,missTELarge ED (ADD) : monophoton + ,missTELarge ED (ADD) : monojet +

Scalar resonance mass1.86 TeV , 7 TeV [1210.1718]-1=4.8 fbL

massL±±H375 GeV , 7 TeV [1210.5070]-1=4.7 fbL

)µµ mass (limit at 398 GeV for L±±H409 GeV , 7 TeV [1210.5070]-1=4.7 fbL

(N) < 1.4 TeV)m mass (RW2.4 TeV , 7 TeV [1203.5420]-1=2.1 fbL

) = 2 TeV)R

(WmN mass (1.5 TeV , 7 TeV [1203.5420]-1=2.1 fbL

))Tρ(m) = 1.1

T(am, Wm) + Tπ(m) =

Tρ(m mass (

Tρ483 GeV , 7 TeV [1204.1648]-1=1.0 fbL

)W

) = MTπ(m) - Tω/Tρ(m mass (Tω/T

ρ850 GeV , 7 TeV [1209.2535]-1=4.9-5.0 fbL

= m(l*))Λl* mass (2.2 TeV , 8 TeV [ATLAS-CONF-2012-146]-1=13.0 fbL

q* mass3.84 TeV , 8 TeV [ATLAS-CONF-2012-148]-1=13.0 fbL

q* mass2.46 TeV , 7 TeV [1112.3580]-1=2.1 fbL

)Q/mν = qQκVLQ mass (charge 2/3, coupling 1.08 TeV , 7 TeV [ATLAS-CONF-2012-137]-1=4.6 fbL

)Q/mν = qQκVLQ mass (charge -1/3, coupling 1.12 TeV , 7 TeV [ATLAS-CONF-2012-137]-1=4.6 fbL

) < 100 GeV)0

(AmT mass (483 GeV , 7 TeV [1209.4186]-1=4.7 fbL

b' mass400 GeV , 7 TeV [1204.1265]-1=2.0 fbL

) mass5/3

b' (T670 GeV , 7 TeV [ATLAS-CONF-2012-130]-1=4.7 fbL

t' mass656 GeV , 7 TeV [1210.5468]-1=4.7 fbL

gen. LQ massrd3538 GeV , 7 TeV [Preliminary]-1=4.7 fbL

gen. LQ massnd2685 GeV , 7 TeV [1203.3172]-1=1.0 fbL

gen. LQ massst1660 GeV , 7 TeV [1112.4828]-1=1.0 fbL

W* mass2.42 TeV , 7 TeV [1209.4446]-1=4.7 fbL

W' mass1.13 TeV , 7 TeV [1205.1016]-1=1.0 fbL

W' mass430 GeV , 7 TeV [1209.6593]-1=4.7 fbL

W' mass2.55 TeV , 7 TeV [1209.4446]-1=4.7 fbL

Z' mass1.4 TeV , 7 TeV [1210.6604]-1=4.7 fbL

Z' mass2.49 TeV , 8 TeV [ATLAS-CONF-2012-129]-1=5.9-6.1 fbL

Λ1.7 TeV , 7 TeV [1202.5520]-1=1.0 fbL

(constructive int.)Λ13.9 TeV , 7 TeV [1211.1150]-1=4.9-5.0 fbL

Λ7.8 TeV , 7 TeV [ATLAS-CONF-2012-038]-1=4.8 fbL

=6)δ (DM4.11 TeV , 7 TeV [1210.1718]-1=4.7 fbL

=6)δ (DM1.5 TeV , 7 TeV [1204.4646]-1=1.0 fbL

=6)δ (DM1.25 TeV , 7 TeV [1111.0080]-1=1.3 fbL

massKK

g1.9 TeV , 7 TeV [ATLAS-CONF-2012-136]-1=4.7 fbL

= 0.1)PlM/kGraviton mass (1.23 TeV , 7 TeV [1208.2880]-1=4.7 fbL

= 0.1)PlM/kGraviton mass (845 GeV , 7 TeV [1203.0718]-1=1.0 fbL

= 0.1)PlM/kGraviton mass (2.23 TeV , 7 TeV [1210.8389]-1=4.7-5.0 fbL

-1 ~ RKKM4.71 TeV , 7 TeV [1209.2535]-1=4.9-5.0 fbL

-1Compact. scale R1.41 TeV , 7 TeV [ATLAS-CONF-2012-072]-1=4.8 fbL

=3, NLO)δ (HLZ SM4.18 TeV , 7 TeV [1211.1150]-1=4.7 fbL

=2)δ (DM1.93 TeV , 7 TeV [1209.4625]-1=4.6 fbL

=2)δ (DM4.37 TeV , 7 TeV [1210.4491]-1=4.7 fbL

Only a selection of the available mass limits on new states or phenomena shown*

-1 = (1.0 - 13.0) fbLdt∫ = 7, 8 TeVs

ATLASPreliminary

ATLAS Exotics Searches* - 95% CL Lower Limits (Status: HCP 2012)

searches&for physics&beyond&the&...

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