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The : Precision sub-attometric Science 1. The Structure of Matter 2011 2. Beyond the Fermi scale: How? 3. Beyond the Fermi scale: What might be? 4. Status and Summary John Dainton Univ Liverpool and the Cockcroft Institute, UK 2 nd Intl Conference on Particle Physics Dogus Universit Turkey June 20 to 25 2011

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Page 1: The : Precision sub-attometric Sciencelhec.web.cern.ch/sites/lhec.web.cern.ch/files/dainton... · 2014-05-22 · tquark M W (TeVatron) M Z, sin2θ, 3 ν h.o. EW (t,H ?) (LEP/SLC)

The :

Precision sub-attometric Science

The :

Precision sub-attometric Science

1. The Structure of Matter 20112. Beyond the Fermi scale: How?3. Beyond the Fermi scale: What might be?4. Status and Summary

John Dainton

Univ Liverpool and the Cockcroft Institute, UK

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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1.The Structure of Matter 2011

1.The Structure of Matter 2011

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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Matter @ Short-DistanceMatter @ Short-Distance

● Rutherford:- 1909 nucleus

Chadwick

Cambridge

nucleus

nucleon

quark

E+W

+Q

CD

prot

ons+

neut

rons

Manchester

SLAC

Q·x ~ 200 GeV am● SLAC end station:

- 1959 nucleus sizenucleon size

- 1967 quarks

● CERN + Fermilab - fixed target- sub-fm (Q ≤ 20 GeV)- 1972 EW

1977 QCD

Nobel

Nobel

Nobel

Nobel

Nobel

Megascale

sub-nuclear scale

Gigascale

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

γ ●ν

?

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Matter @ Short-DistanceMatter @ Short-Distance

● Rutherford:- 1909 nucleus

NobelMegascale

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

α

Auatom

Philosophical Magazine, volume 21 (1911), pages 669-688

γ

p●

●α

Aunucleus

+●

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Q2 = (e - e’)2 = -(q02- q2)

p

e

● x = “inelasticity” of struck piece of hadron

Kinematics nowKinematics now

● q = 3-momm transfer in lepton-hadron interactionsensitive to spatial extent of interaction

x

q W2

-q0 = energy transfer from lepton in interactionphase space for dynamics in interaction (W)

probe kinematics → extent+view of interaction

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

target kinematics ↔ extent of interaction

hadronic systemQ2=-q2

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p

e

P0

Interaction ScaleInteraction Scale

Q2=-q2 x

qW2

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

hadronic system

)4

1(2

0

2

2

0

2

2

2

2

Px

q

xP

qq

qq LL

T

M

P0

0P

P

● hadron ∞ momentum:“snapshot” of Lorentz-contracted target hadron

● hadron at rest:

magnification of interaction and structure as x→0

)4

1(22

2

2222

Mx

qqqq

LTq

22

qqT

● scale q·r ~ 200 GeV·am

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● EW probe of hadronic structure …

Hadronic StructureHadronic Structure

- neutral current

- charged current

e e

qγ+Z

e

qW±

ν

● and beyond ?q structure ?

e

q qγ

e e

q qW±

ν+ + ?

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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Matter @ Short-DistanceMatter @ Short-Distance

● SLAC end station:- 1959 nucleus size

nucleon size- 1967 quarks

NobelsHofstädter

Friedman Kendall Taylor

sub-nuclear scale

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

γe

p

q

dσ /dΩ(cm2ster-1)

1x

=

1x =

Q2 (GeV2)

Proposal:

“A general survey of the basic

cross sections which will be

useful for future proposals”

F2

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Matter @ Short-DistanceMatter @ Short-Distance

● CERN + Fermilab - fixed target- sub-fm (Q ≤ 20 GeV)- 1972 weak NC

1977 QCD

Nobel

Nobel

Gigascale

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

●νν

●eν

F2

●+

μ μ

μ

+

μ●

fixedtarget

Matter @ Short-DistanceMatter @ Short-Distance

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The Energy FrontierThe Energy Frontier

quarks neutral currents

U(1) eR

asymptoticfreedom

Drell YancharmbeautyW,Zjets

charmbeauty

jets3 colours

gluon

lp e+e-

pp

SU(2)L U(1)SU(3)C

1968-1986Gigascale

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

(charged and neutral lepton l )

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Q

Why Leptons Quarks ?Why Leptons Quarks ?

● beyond the gigascale to the Fermi scale:

how are leptons and quarks related ?

● put them together at the highest energyin the finest detail ΔxΔQ ~ ħ

ICHEP76 Tblisi

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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challenge: different particle species ep in collision

27.6 GeV electrons + 920 GeV protons

electronsH1

Hermes

A precision Fermiscale epCollider HERA @ DESY

A precision Fermiscale epCollider HERA @ DESY

HERADESY

HamburgZEUS

uud +seauud +sea

leptonlepton

1992-2007RIP

HERA+

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

ep cm energy 314 GeV

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Fermiscale Experiment @ HERA

Fermiscale Experiment @ HERA

asymmetric e and p

electrons27.6 GeV

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

pT scale ~ 300 GeV (Fermi)

many bunch Δtep = 75 ns

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Matter @ Short-DistanceMatter @ Short-Distance

eq

eq q

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

● Rutherford scatteringat the Fermi scale

- neutral current

- charged current

protons920 GeV

electrons27.6 GeV

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≤2 am

~0.002 fm

resolving structure in SU(2) U(1)0.2 TeV·am

Q

MW2

Rutherford scatteringeq eq

Q2 (GeV2)

epeX

epνX

Δx ~

1/Q4

e

q

ν

q

e

q

e

q

0.2 GeV·fmMW

γ

q qe ν

rate

eq νq

HERA (ep)

eq @ Fermi scaleeq @ Fermi scale2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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≤2 am

resolving chirality in SU(2)L U(1)RO (m

2/s ): fermionL anti-fermionR

Rutherford scattering+ SM helicityeq νq

e

q

ν

qW±

Electron-Quark PhysicsElectron-Quark Physics2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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Electron-Quark PhysicsElectron-Quark Physics

● EW q couplings(in proton matter)

e

q

e

qγ+Z

e

q qW±

ν

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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e

q

● point-like Q2 ≤ 4х104 GeV2 → MPlanck > 72 TeV

q @ Fermi scale ≥ 1 amq @ Fermi scale ≥ 1 am

dataSM

= +Ze

q

Λ

Λ

200 GeV·am(lattice 200 am

@ 1%)

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

+Z

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● discovery: q in QCD OK @ Fermi scale

- magnification at low-xQCD → q and g structure

Nucleon Structure @ Fermi scaleNucleon Structure @ Fermi scale

F2(x, Q2) (+ cosmetic offset)

x

fall at high x

flat at x0.16

Q2 (GeV2)

- precision qT @ higher-xQCD in hadron structure

q……

γe

pq

rise at low x

+ …

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Nucleon StructureNucleon Structure

● what you are

made of!

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

● precision

structure ofthe proton

down to the Fermi scale> 1 am

● (almost) what

interacts at the LHC Terascale

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No HERA, no Fermi scale ?No HERA, no Fermi scale ?

● valence qV

fixed flavour (u d) evolution- resolving qV inp structure

● flavour singletfield qS evoln

- resolving qS instructure inQCD field

!

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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Matter @ Short-DistanceMatter @ Short-Distance

● discovery @ HERA:- 1992 origin of visible

mass in the Universe

Chadwick

Cambridge

nucleus

nucleon

quark

EW

+Q

CD

prot

ons+

neut

rons

Manchester

SLAC

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

mass

=g

Gigascalelow x

?

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W production @ LHC

● precision (≤2%) measurements of proton structure+ QCD evolution Fermi to Terascale

Critical Precision @ HERACritical Precision @ HERA

Diaconnu ICHEP08

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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spacelike EWquarks > 1 am

precision QCDhigh density QCD

c,b in hadrons(HERA)

b quarkt quark

MW

(TeVatron)

MZ , sin2θ, 3 νh.o. EW (t,H ?)

(LEP/SLC)CKM

(B-factory)

lp e+e-

pp

StandardModel

1986 - ≥2011Fermi scale

The Energy FrontierThe Energy Frontier2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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2.The Structure of Matter beyond the Fermi scale: How?

2.The Structure of Matter beyond the Fermi scale: How?

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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LHC hadrons … and leptons ?LHC hadrons … and leptons ?

●”standard” LHC protons

protonsantiprotons

protons

Np

εpN

… with electrons?

protonselectrons?

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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LHeC: a futureLHeC: a future

● LHeC:

- highest √s: Terascale

- exceptional lumi

- precision e-quarke-protone-deuterone-ion

- “could be built now”

- “could run now” @ LHCbeside pp

beside ion-ion

_ JINST 1 (2006) P10001European strategy 2006

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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EPAC08Genoa June 23 toJune 27 2008

discovery + precision @ Terascale

precision structure

and dynamics

@ LHC TeV scale

precision

probe of

magnified

nucleivery

dense

matter

● 70 7000 GeVe p or ion A

- cm energy1400 GeV

● e-ring LHC

● e-linac LHC

0.2 fm

0.2 am

3×10-7

space-like qT > 0.5TeV

seq >TeVLHeC

Matter @ Shorter-Distance: LHeCMatter @ Shorter-Distance: LHeC

Q2 > 10 GeV2 low-x magnification > 120,000 1200 12

● Terascale

q +~7g

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Chadwick

Cambridge

nucleus

nucleon

quark

NC+CC+gluo

n

g+EW

● unique chiral probe @ 0.1 am ?

prot

ons+

neut

rons

Manchester

SLAC

● 70 e± p 7000 GeVcm energy 1400 GeV

SM @ ~ 0.1 am ?SM @ ~ 0.1 am ?

Lepton+quark @ TeVLepton+quark @ TeV

Z W

e

RL

?

e± RL am? Q2

seq

Q·x ~ 200 GeV am

?

LHeC

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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DGLAP

Quark+quark @ LHCQuark+quark @ LHC

● g or q probe @ > 0.01 am - central dijets- DGLAP QCD required- soft colour?

precision ?

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

LHeC

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Lepton-Parton and Parton-Parton ?

Lepton-Parton and Parton-Parton ?

Z W

e

RL

?

?g q

?

?

•ep eX •pp (jet+jet)X

probe-parton jet

jet

•LHeC energy scale: 707000 GeV

•pp energy scale: 70007000 GeV

xprobe/p = 0.01xprobe/p = 0.01

probe+p at LHeC scale

probe = e (x = 1)probe = e (x = 1)

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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LHC probe partonLHC probe parton

- xq = xU +xD +xU +xD

g :q ~ 2:1 mixedg :q ~ 2:1 mixed

● probe-parton @ x 0.01● probe-parton @ x 0.01

● probe-parton @ x » 0.01● probe-parton @ x » 0.01

g :q ~ 1 all quarkg :q ~ 1 all quark

“mixed” LHC probe@ LHeC energy“mainly q” LHC probe@ LHC top energy

- -

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

LHeC only precise SMprobe in critical domain

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L 1

4N

p

p

1

*

Ie

e

Np 1.7 10

11,

p 3.8m ,

* 0.2m , 7000 /0.94

L 8 1031cm

2s1N

p10

11

1.70.2

*/m

Ie/mA

1

Ie mA

P /MW

Ee/GeV

L N

p

4epn

Ie

pxpy

Np 1.7 10

11,

p 3.8m ,

px ( y ) 1.8(0.5)m ,

Ep

Mp

L 8.2 1032cm

2s1N

p10

11

1.7

m

pxpy

Ie

50 mA

Ie 0.35mA P [MW ] (100 / E

e[GeV ])

4

● ring-ring (RR)<100 MW wall plug“ultimate” LHC p beam60 GeV e± beamL = 2 1033 cm-2s-1

O(100) fb-1

● linac-ring (LR)pulsed, 60 GeV: L~1032

higher luminosity:energy recoveryP=P0/(1-η)β* = 0.1mL = 10 cm2s-1

O(100) fb-1

synchronous ep and pp~ 100 × LHERA

ep (with pp) @ LHC?ep (with pp) @ LHC?2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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TOBB ETU

KEK

The LHeC projectThe LHeC project2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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LHeC RRLHeC RR2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

5min fill

● 10 GeV linac injection into 60 GeV R

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LHeC RRLHeC RR2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

● L = 1033 cm-2s-1 (100×HERA) not difficult

● e+ and e-

● polarisation ~40%

● magnet concepts defined and non-controversial

● injector linac with ILC-like cavities < 25 MV/m

● interference with hadron rings

● by-passes (civil engineering) of CMS+ATLAS+…

● footprint within CERN territory

● cost coming (well within CERN pa budget)

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LHeC RR: CMS bypassLHeC RR: CMS bypass2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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LHeC RR: ATLAS bypassLHeC RR: ATLAS bypass2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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● LHC interference, activation?

LHeC RR: e ring installationLHeC RR: e ring installation2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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Half the LHC FODO size for emittance

Asymmetric FODO cell to account forregular cryo jumpers of LHC

Put maximum number of dipole magnetsto keep synchrotron radiation smallAlso designed: dispersion suppressor (8 quads),

by-pass optics, matched IR optics

LHeC RR: e ring opticsLHeC RR: e ring optics2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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5m long(35 cm)2

slim + lightfor installation

BINP &CERNprototypes

736 magnets1.2 m long

LHeC RR: dipoles + quadsLHeC RR: dipoles + quads2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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● RR ~1mrad (25ns) cross angle for no bunch x-talk● LR – head-on collisions + dipole beam separation● synchrotron radiation: shielding under control

● 2nd quad: 3 beams in horizontal planeseparation 8.5cm, MQY cables, 7600 A

● 1st sc half quad (focus and deflect)separation 5cm, 127T/m, MQY cables, 4600 A

[July 2010]

RR + LR interaction regionRR + LR interaction region2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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CERN 1CERN 2

Jlab BNLTwo 10 GeV Linacs, 3 returns, ERL, 720 MHz cavities, rf, cryo, magnets, injectors, sources, dumps…

LR: linac conceptsLR: linac concepts2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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● L ~ 1033cm-2s-1 possible for e-

● e+ require energy recovery AND recycling, L+ < L-

● energy limited by SR in racetrack mode● may be 2-beam recovery for high energy LINAC ?● e-(+) polarisation 90(0)%● cavities: synergy with SPL, ESS, XFEL, ILC● cryo: fraction of LHC● energy recovery (Cockcroft, Cornell, BINP, ..) ● small interference with LHC hadrons● by-pass of LHeC IP● extended dipole at ~1m radius in detector● footprint beyond CERN territory (~9 km tunnel)● cost coming (well within CERN pa budget)

LHeC LRLHeC LR2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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● 3 beams, head-on collisions

● p and e

LHeC LR: interaction regionLHeC LR: interaction region2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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● multibunch wakefields● emittance growth μm● 36σ separation at 3.5m● Q (between ILC/BNL) ● layout tentative

600 4m dipoles/arc 240 1.2m quadrupoles/arc

1056 cavities66 cryo modules per linac721 MHz19MV/m CW21 MW rf, total 88 MW cryo 29 MW for 37W/m heat load

LHeC LR: Energy RecoveryLHeC LR: Energy Recovery2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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electron beam RR LR LR

e- energy at IP[GeV] 60 60 140

luminosity [1032 cm-2s-1] 17 10 0.44

polarization [%] 40 90 90

bunch population [109] 26 2.0 1.6

e- bunch length [mm] 10 0.3 0.3

bunch interval [ns] 25 50 50

transv. emit. x,y [mm] 0.58, 0.29 0.05 0.1

rms IP beam size sx,y [m] 30, 16 7 7

e- IP beta funct. *x,y [m] 0.18, 0.10 0.12 0.14

full crossing angle [mrad] 0.93 0 0

geometric reduction Hhg 0.77 0.91 0.94

repetition rate [Hz] N/A N/A 10

beam pulse length [ms] N/A N/A 5

ER efficiency N/A 94% N/A

average current [mA] 131 6.6 5.4

tot. wall plug power[MW] 100 100 100

proton beam RR LR

bunch pop. [1011] 1.7 1.7

tr.emit.x,y [m] 3.75 3.75

spot size sx,y [m] 30, 16 7

*x,y [m] 1.8,0.5 0.1

bunch spacing [ns] 25 25

● “ultimate p beam”● deuterons + Pb

LHeC Design ParametersLHeC Design Parameters2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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● high L for large Q2 and large x1033 1-5 1031

● largest possible acceptance 1-179o 7-177o

● precision tracking 0.1 mrad 0.2-1 mrad

● precision electromagnetic calorimetry0.1% 0.2-0.5%

● precision hadronic calorimetry0.5% 1%

● accurate luminosity/polarisation0.5% 1%LHeC H1

kinematiccoveragemodern Si

kinematicreconstruction

track+caloe/hnotstraight-forward

LHeC ExperimentLHeC Experiment2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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Fwd/Bwd asymmetry in energy deposited and thus in geometry and technology [W/Si vs Pb/Sc..]

Present dimensions: LxD =13x9m2 [CMS 21 x 15m2 , ATLAS 45 x 25 m2]

Taggers at -62m (e),100m (γ,LR), -22.4m (γ,RR), +100m (n), +420m (p)Tentative 21.3.11

Tile Calorimeter

LAr electromagnetic calorimeter

LHeC ExperimentLHeC Experiment2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

pe

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Fwd/Bwd asymmetry in energy deposited and thus in geometry and technology [W/Si vs Pb/Sc..]

Present dimensions: LxD =13x9m2 [CMS 21 x 15m2 , ATLAS 45 x 25 m2]

Taggers at -62m (e),100m (γ,LR), -22.4m (γ,RR), +100m (n), +420m (p)

Tentative 21.3.11

LHeC ExperimentLHeC Experiment2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

● compact

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Performance simulated for tile cal only

A charged pion in the LHeC HCAL

LHeC ExperimentLHeC Experiment2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

● segmented calorimetry

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LHeC ExperimentLHeC Experiment2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

● foreseeable semiconductor development (LHC)

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Tentative 21.3.11

Beam pipe design – work in progress

LR more challenging than RR due toextended synchrotron radiation fan

R. Veness et al CERN

LHeC ExperimentLHeC Experiment2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

● beam pipe

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transverse momentumΔpt/p2

t 6 10-4 GeV-1

transverseimpact parameter 10μm

LHeC ExperimentLHeC Experiment2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

● charged particle reconstruction

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LHeC ExperimentLHeC Experiment2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

● physics performance

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3.The Structure of Matter beyond the Fermi scale: what might be?

3.The Structure of Matter beyond the Fermi scale: what might be?

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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SensitivitySensitivity

●rates: energy and lumi → TeV2 reach in Q2

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

100 fb-1 70 GeV e-ring

1 fb-1 HERA (sim)

NC epeX CC ep X

10 fb-1 140 GeV e-linac

TeV

TeV

1000 1000

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No LHeC, no Terascale ?No LHeC, no Terascale ?

● valence qV

fixed flavour (u d) evolution- resolving qV inp structure

● flavour singletfield qS evoln

- resolving qS instructure inQCD field

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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Electron-Quark PhysicsElectron-Quark Physics

● EW light q couplings(in proton matter)

e

q

e

qγ+Z

e

q qW±

ν

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

ZEUS

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● precision extrapolation discoveryprobe new chromodynamic physics – beyond SM ?

●short distancestructure of SM+

- 2007 α @ 10-3 ppm

- 2007 GF @ 10 ppm

- 2007 G @ 0.1%

- 2007 αS @ 1-2%

- LHeC + detector αS @ few ‰

•precision QCD at highest energy

Probing Unification ?Probing Unification ?2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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How heavy can you be?How heavy can you be?

●relentless rise of quark (F2) and gluon ∂F2/∂lnQ2

● low-x magnifier: HERA: x > 10-4 @ Q2=10 GeV2

2nd Intl Conference on Particle Physics

Dogus Universit Turkey

June 20 to 25 2011

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How heavy can you be?How heavy can you be?2nd Intl Conference on Particle Physics

Dogus Universit Turkey

June 20 to 25 2011

● low-x magnifier: LHeC: x > 4x10-6 @ Q2=10 GeV2

Forshaw

(10 fb-1)

stat 0.1%sys 2-3%

● LHeC “nails”saturation

HERA● unitarity

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Gluons from saturated nuclei Glasma? QGP Reconfinement

More on your mass!More on your mass!2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

● low-x magnifierin nuclei

- stacking up nucleons

gluons behind gluons?

- amplified saturation?

- QCD phase equilibria

- nuclear parton density(no HERA)

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signature

e,

q

e+ F=0e- F=2

gq Lq l

productionmechanism ?

disentangle massspectrum ?

e q

e

q

*

LHC Lq physics +decay LHeC Lq formation+decay

fermionnumber

_

spinparityand

chirality

defined formation (eLR) precision BRs (NC CC)

coherence PWA

flavour sensitivity

SM + signal + interference

jet + leptonsjet+lepton+pT balancejet +pT imbalance

Beyond SMBeyond SM2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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1 TeVLHeC LHeC

LHC

● new lepton+quark physics (Lq) + SM (precision)- resonance (incl. below threshold in u-channel)

Lepton+quark @ TerascaleLepton+quark @ Terascale2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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charm

beauty

CCsW cbW t

ttbar

[1010 / 10 fb-1]

[103 / 10 fb-1]

[105 / 10 fb-1]

[4.105 / 10 fb-1]

[108 / 10 fb-1]

Heavy Quark @ TerascaleHeavy Quark @ Terascale2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

● HF-scale @Terascale

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● H→b-jets + pTmiss

- fewx103/yearbefore cuts

- 2 b-tag- background:

jets in NCtop

HiggsHiggs2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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TeVdiscovery& precision ?particles ?

symmetries ?dense QCD

(LHeC)

TeV discovery ?Higgs?

new particles?new symmetries?

(LHC)

ttdiscovery &precision ?

spectroscopyHiggs ?

(ILC/CLIC)

lpe+e-

pp

BeyondStandardModel

new physics

2011-2033?Terascale

-

The Energy FrontierThe Energy Frontier2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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The Matter FrontierThe Matter Frontier

QCD dof @extremes

strong QCD 1C

(LHeC)

QGP ?QCD phase equilibria?

nuclear dynamics?nuclear formation

(LHC)

pQCD(SuperKEKBILC/CLIC)

lA e+e-

AA

matter creationnew physics

2011-2033: the mass we’re made of ?chromodynamics?

ion = A

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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EPAC08Genoa June 23 toJune 27 2008

3. Status and Summary

3. Status and Summary

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LHeCLHeC

● LHeC is the terascale lepton-quark machine- to date most pragmatic (and cost effective)

means of getting a lepton into aTeV interaction- “upgrade of LHC” – simultaneous pp ep (AA eA)

- exploits stupendous LHC hadron beams- challenges contemporary e-beam technology

synergies (ERL, linac, low emittance rings)- no showstoppers so far- CERN ECFA and NuPECC support

EIC/eRHIC collaboration- evaluation → CDR → ECFA, Europe strategy, CERN- TDR > 2011 → approval → physics ≥2020

quarks and leptons; why and how ? When ?

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

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Variations on timeline: production of main components can overlap with civil engineering Installation can overlap with civil engineering Additional constraints from LHC operation not considered here in any variation, a start by 2020 requires launch of prototyping of

key components by 2012

ECFA 11/2010: mandate to 2012

LHeC Time-lineLHeC Time-line2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011

Year 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022

Prototyping-testing

Production maincomponents

Civil engineering

Installation

Operation

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Accelerator Design [RR and LR]Oliver Bruening (CERN), Max Klein (Liverpool)Interaction Region and Fwd/Bwd Bernhard Holzer (DESY), Uwe Schneekloth (DESY),Pierre van Mechelen (Antwerpen)Detector Design Peter Kostka (DESY), Rainer Wallny (U Zurich), Alessandro Polini (Bologna)New Physics at Large ScalesGeorge Azuelos (Montreal)Emmanuelle Perez (CERN), Georg Weiglein (Durham)Precision QCD and Electroweak Olaf Behnke (DESY),Paolo Gambino (Torino),Thomas Gehrmann (Zuerich)Claire Gwenlan (Oxford)Physics at High Parton Densities Nestor Armesto (Santiago), Brian Cole (Columbia), Paul Newman (Birmingham), Anna Stasto (MSU)

Oliver Bruening (CERN)John Dainton (Cockcroft) InstAlbert DeRoeck (CERN)Stefano Forte (Milano)Max Klein - chair (Liverpool)Paul Laycock (secretary) (L’pool)Paul Newman (Birmingham)Emmanuelle Perez (CERN)Wesley Smith (Wisconsin)Bernd Surrow (MIT)Katsuo Tokushuku (KEK)Urs Wiedemann (CERN))Frank Zimmermann (CERN)

Guido Altarelli (Rome)Sergio Bertolucci (CERN)Stan Brodsky (SLAC)Allen Caldwell -chair (MPI Munich)Swapan Chattopadhyay (Cockcroft)John Dainton (Liverpool)John Ellis (CERN)Jos Engelen (CERN)Joel Feltesse (Saclay)Lev Lipatov (St.Petersburg)Roland Garoby (CERN)Roland Horisberger (PSI)Young-Kee Kim (Fermilab)Aharon Levy (Tel Aviv)Karlheinz Meier (Heidelberg)Richard Milner (Bates)Joachim Mnich (DESY)Steven Myers, (CERN)Tatsuya Nakada (Lausanne, ECFA)Guenther Rosner (Glasgow, NuPECC)Alexander Skrinsky (Novosibirsk)Anthony Thomas (Jlab)Steven Vigdor (BNL)Frank Wilczek (MIT)Ferdinand Willeke (BNL)

Scientific Advisory Committee

Steering Committee

Working Group Convenors

LHeC organisationLHeC organisation

http://www.ep.ph.bham.ac.uk/exp/LHeC/

2nd Intl Conference on Particle PhysicsDogus Universit Turkey June 20 to 25 2011