Status us of of FC FCC-eh -eh and and LHeC LHeC B.M .Mellado - - PowerPoint PPT Presentation

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Status us of of FC FCC-eh -eh and and LHeC LHeC B.M .Mellado - - PowerPoint PPT Presentation

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Status us of of FC FCC-eh -eh and and LHeC LHeC B.M .Mellado ellado Wit its Ins nstit itut ute e for or Collider ollider Par artic icle le Phy hysics ics & iT iThemba hemba LA LABS On behalf On behalf of of the he

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SLIDE 1

B.M .Mellado ellado

Wit its Ins nstit itut ute e for

  • r Collider
  • llider Par

artic icle le Phy hysics ics & iT iThemba hemba LA LABS

On On behalf behalf of

  • f the

he LHeC LHeC Study udy Gr Group

  • up

Many any thanks hanks to

  • M.D

.D’Onof Onofrio io, , M.Klein .Klein and and U.Klein .Klein for

  • r slides

lides

Int nter erpr pret eting ing the he LHC LHC Run un 2 2 da data a and and bey beyond,

  • nd,

ICTP , , 31/ 31/05/ 05/19 19

Status us of

  • f FC

FCC-eh

  • eh and

and LHeC LHeC

Institute for Collider P article Physics

University of the Witw atersrand

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SLIDE 2

CERN Referees

Published 600 pages conceptual design report (CDR) written by 150 authors from 60 Institutes. Reviewed by ECFA, NuPECC (long range plan), Referees invited by CERN. Published June 2012.

arXiv:1206.2913 arXiv:1211.4831 and 5102

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SLIDE 3

3

Organisation*)

Sergio Bertolucci (CERN/Bologna) Nichola Bianchi (Frasca9) Frederick Bordry (CERN) Stan Brodsky (SLAC) Hesheng Chen (IHEP Beijing) Eckhard Elsen (CERN) Stefano Forte (Milano) Andrew HuFon (Jefferson Lab) Young-Kee Kim (Chicago) Victor A Matveev (JINR Dubna) Shin-Ichi Kurokawa (Tsukuba) Leandro Nisa9 (Rome) Leonid Rivkin (Lausanne) Herwig Schopper (CERN) – Chair Jurgen SchukraT (CERN) Achille Stocchi (LAL Orsay) John Womersley (ESS) Interna'onal Advisory Commi3ee with CERN mandate to provide

“..Direc'on for ep/eA both at LHC+FCC”

Nestor Armesto Oliver Brüning – Co-Chair Andrea Gaddi Erk Jensen Walid Kaabi Max Klein – Co-Chair Peter Kostka Bruce Mellado Paul Newman Daniel Schulte Frank Zimmermann Coordina'on Group

Accelerator+Detector+Physics

5(11) are members of the FCC coordina9on team

OB+MK: FCC-eh coordinators FCC IAC: Guenter Dissertori +

PDFs, QCD Fred Olness, Claire Gwenlan Higgs Uta Klein, Masahiro Kuze BSM Georges Azuelos, Monica D’Onofrio Oliver Fischer Top Olaf Behnke, Chris9an Schwanenberger eA Physics Nestor Armesto Small x Paul Newman, Anna Stasto Detector Alessandro Polini Peter Kostka Working Groups

*) 2018

+ FCC-he

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SLIDE 4

Lay Layout

  • ut

4

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SLIDE 5

FC FCC-eh

  • eh

60 GeV ERL tangential to FCC-hh. IP: L for geological reasons. L= 1.5 1034 Higher s, Q2, 1/x

J.Os .Osbor borne, ne, et et al al

5

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SLIDE 6

Ener Energy R Reco ecover ery Linac Linac f for LHeC LHeC/FCCeh FCCeh

Concurrent operation to pp, LHC/FCC become 3 beam facilities. Power limit: 100 MW 1034 cm-2 s-1 luminosity and factor of 15/120 (LHC/FCCeh) extension of Q2, 1/x reach 1000 times HERA luminosity. It therefore extends up to x~1. Four orders of magnitude extension in deep inelastic lepton-nucleus (ion) scattering.

U(ERL) = 1/3 U(LHC)

M.Klein

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SLIDE 7

Luminos Luminosit ity for

  • r LHeC

LHeC, , HE HE-LHeC

  • LHeC and

and FC FCC

Contains update on eA: 6x1032 in e-Pb for LHeC.

7

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SLIDE 8

Power erful ul ERL ERL for

  • r Exper

xperiment iments

arXiv:1705.08783

https://indico.cern.ch/event/680603/

  • J. Phys. G45 (2018)

ERL facility: high current and energy low energy nuclear, particle and astro-physics

Collaboration of BINP , CERN, Daresbury/Liverpool, Jlab, Orsay INP+LAL CDR 2016/17, TDR 2018/19 ..

8

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SLIDE 9

PERLE at Orsay (LAL/INP) Collaboration: BINP, CERN, Daresbury/Liverpool, Jlab, Orsay 3 turns, 2 Linacs, 500 MeV, 20mA, 802 MHz, Energy Recovery Linac facility

  • Demonstrator of ERL for ep at LHC/FCC
  • SCRF Beam based development facility
  • Low E electron and photon beam physics
  • High intensity: O(100) x ELI

PERLE LE at Or Orsay ay

CDR to appear in J Phys G [arXiv:1705. 08783]

A.Bogacz

5.5 x 24m2 Strong low energy physics program https://indico.cern.ch/event/698368/

9

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SLIDE 10

10

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SLIDE 11

PERLE LE Magnet gnets

70 70 dipoles dipoles 0.45-1.29 0.45-1.29 T ±20 mm aperture, l=200,300,400 mm May be identical for hor+vert bend 7A/mm2 (in grey area) water cooled DC operated 114 114 quadr quadrupoles upoles max max 28T 28T/m m Common aperture of 40mm all arcs Two lengths: 100 and 150mm DC operated

380 mm 220 mm 250 mm

P Thonet, A Milanese (CERN), C Vallerand (LAL), Y Pupkov (BINP)

11

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SLIDE 12

1st

st 802

802 MHz Hz Cavit ity

CERN-Jlab design, produced at Jefferson Laboratory November 2017

Goal: 16 MV/m, Q0 > 1010 operated in CW in the PERLE+LHeC ERLs, prototype also for FCC-ee F . Marhauser et al (Jlab)

12

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SLIDE 13

Init nitial ial 2K 2K Tes est of

  • f 802

802 MHz Hz Nb Nb Cavit ity

December ecember 2017 2017

High quality, CW: operation point at about 18 MV/m. Quench at 31 MV/m Rerinsing for field emission suppression, observed at higher gradients. Next: HOM adapter and cryomodule design – cavity production to proceed. Quality Factor 13

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SLIDE 14

tit itle le

14

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SLIDE 15

15

LHeC Detector Basic Layout

All Numbers [cm]

http://cern.ch/lhec CDR: “A Large Hadron Electron Collider at CERN” , 
 LHeC Study Group, [arXiv:1206.2913], 


  • J. Phys. G: Nucl. Part. Phys. 39 (2012) 075001


 “On the Relation of the LHeC and the LHC” [arXiv:1211.5102]

e- p/A Muon Detector

Hadronic Calorimeter Fwd-HCalo Insert Bwd-HCalo Insert Electromagnetic Calorimeter Hadron Fwd-Endcap Hadron Bwd-Endcap Solenoid Central Tracker Fwd Tracker Bwd Tracker

46 108 275 580 140 170 40 40 40 140 438 1316

Dipole Dipole Electromagn.- Fwd-Endcap Electromagn.- Bwd-Endcap

P .Kostka

LHeC Detector Basic Layout

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SLIDE 16

16

e- p/A Muon Detector

Hadronic Calorimeter Fwd-HCalo Insert

Bwd-HCalo Insert

Electromagnetic Calorimeter Hadron Fwd-Endcap

Hadron Bwd-Endcap

Solenoid Central Tracker Fwd Tracker Bwd Tracker

46 154 433 1060

All Numbers [cm]

180 350 50 80 60 200 600 1927

Dipole Dipole Electromagn.- Fwd-Endcap Electromagn.- Bwd-Endcap

FCC-he Detector Basic Layout

Based on the LHeC design; Solenoid&Dipoles between Electromagnetic Calorimeter and Hadronic Calorimeter.

Length of Solenoid ~10m

P .Kostka

FCC-he Detector Basic Layout

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SLIDE 17

Ins nstalla allation ion Study udy

to

  • fit

it int into

  • LHC

LHC shut hutdo down n needs needs dir direct ected ed to

  • IP2

Andr ndrea ea Gad Gaddi di et et al al

Detector fits in L3 magnet support Modular structure

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SLIDE 18

18

Physics Highlights

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SLIDE 19

LHeC LHeC Phy hysics ics Prog

  • gramme

amme

Ultra high precision (detector, e-h redundancy) - new insight Maximum luminosity and much extended range - rare, new effects Deep relation to (HL-) LHC (precision+range) - complementarity CDR, arXiv:1211.4831 and 5102 http://cern.ch/lhec Strong coupling 0.1%; Full unfolding of PDFs; Gluon: low x: saturation?, high x: HL LHC searches…

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SLIDE 20

20 20

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SLIDE 21

21

arXiv:1802.043317

Strong reduction of parton pdf uncertainties, with largeimpact on high- x physics in pp Achieve down to 0.1% error in αs

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SLIDE 22

Reduce educe pdf pdf er error

  • r 2.8

2.8 MeV eV à Remo emove e PDF F uncer uncertaint ainty on

  • n MW LHC

LHC Spacelik pacelike e MW to

  • 10

10 MeV eV from

  • m ep

ep à Elect lectroweak eak tes est at 0.01% 0.01% !

High High Precis ecision ion for

  • r pp

pp

44 46 48 50 52 54 56 58 60 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1

Can an ac achie hieve e <0.5% 0.5% pr precis ecision ion in in pdf pdf uncer uncertaint ainty, , thus hus remo emoving ing this his uncer uncertaint ainty from

  • m the

he pr predict ediction ion of

  • f the

he Hig Higgs gs cr cros

  • ss-s
  • sect

ection. ion.

M.Klein

22

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SLIDE 23

eA eA Collis

  • llisions

ions

23

Extension of kinematic range of eN scattering by

  • rders of magnitude in Q2

and 1/x Complementarity to AA and pA physics: initial state of QGP, hadronisation and mechanism of confinement, colective phenomena seen in AA, pA and pp

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SLIDE 24

eA eA: : inc inclus lusiv ive

24

  • Large impact on nPDFs,

possible to make a Pb fit without proton PDFs

  • Large room for

improvements: NC+CC at several energies, flavour decomposition,…

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SLIDE 25

Dir irect ect Meas easur urement ement of

  • f |Vtb

tb|

|

25

LHeC LHeC, , 100 100 fb-1

  • 1

1.000±0.01 (expected)

LHeC

C.Schwanenberger Takes advantage that tt production is suppressed in ep. FCC-eh with 2 ab-1 would further improve the result significantly.

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SLIDE 26

Top

  • p Quar

Quark k Anomalous nomalous Couplings

  • uplings

26

Dutta, Goyal, Kumar, Mellado, Eur. Phys. J. C75 (2015) no.12, 577 Kumar, Ruan, to be publ.

DELPHES

<0.01 <0.04 <0.09 <0.14

DELPHES parametrisation

Sun, Wang, arXiv:1602.04670

  • bservation

Turk Cakir, Yilmaz, Denizli, Senol, Karadeniz,

  • O. Cakir, Adv. High Energy
  • Phys. 2017, 1572053 (2017)

FCC-ep LHeC

b b _ νe e- W+ b h t P q

FCC-ep

  • bservation

= 1 in SM

C.Schwanenberger

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SLIDE 27

Hig Higgs gs in in ep ep

q It is is remar emarka kable ble tha hat VBF F dia diagrams ams wer ere e calcula calculated ed for

  • r

lept lepton

  • n nuc

nucleon leon collis collisions ions bef befor

  • re

for

  • r pp!

pp! q Small mall theor heoret etical ical uncer uncertaint ainties ies q Topological

  • pological requir

equirement ements ef effect ectiv ive e in in bac backg kground

  • und

suppr uppres ession ion q Lar Large ge S/B w.r .r.t .t. . pp pp, , e.g. e.g. in in hàbb bb expect xpect S/B=3

27

At LHC replace lepton lines by quark lines but dominantly gg à H

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SLIDE 28

28

LHeC LHeC, , a a Hig Higgs gs Facilit acility

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SLIDE 29

CDR Upda Updates es: : Two

  • independent

independent anal analyses es

ICHEP 2014 Master Thesis Ellis Kay, Liverpool 2014, PGS “detector” ATLAS-style and & modeling of PHP background using low Q2 NC DIS

[ after Higgs discovery MH=125 GeV, Ep=7 TeV, Ee=60 GeV; cut-based & conservative] 100 fb-1 1 year of data

Confirmed CDR: S/N>1 using conservative light misID and cut- based δµ=2% for 1 ab-1

PGS of LHC detector + flat parton-level b- tagging for |η|<3.0 b: 60%, c: 10%, udsg: 1%

CAL coverage |η|<5.0

29

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SLIDE 30

BDT Res esult ults for

  • r Hig

Higgs gs @ LHeC LHeC

Hb Hbb: b: Clear lear sens ensit itiv ivit ity to

  • chos

hosen en jet jet radius adius; ; rather her robus

  • bust w.r

.r.t .t. . ver ertex x res esolut

  • lution

ion in in range ange of

  • f 5

5 to

  • 20

20 µm µm Hcc : High sensi+vity to vertex resolu+on (nominal 10 μm) and jet radius à expect about 400-600 Hcc candidates

L=1 ab-1 Pe=-80%

Daniel Hampson, MPHYS 2016

using realistic HFL tagging at Delphes detector level 30

U.Klein

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SLIDE 31

Hig Higgs gs in in ep ep – clean S/B, no pile-up

& Izzy Harris BSc 2017

2% PHP and 2%

  • ther bgd

0.8%

Assuming ATLAS light jet misID efficiencies

31

U.Klein

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SLIDE 32

Observe/Exclude non-zero phase to better than 4σ at

  • LHeC. Achieve <2% error on kt at the FCC-eh.

Top

  • p Yukaw

ukawa a coupling coupling

Introduce phase dependent top Yukawa coupling

Enhancement of the cross- section as a function of phase

5 10 15 20 25 π/5 2π/5 3π/5 4π/5 π µ ζt

Ee = 60 GeV Ee = 120 GeV

B.Coleppa, M.Kumar, S.Kumar, B.M., Phys. Lett. B770 (2017) 335

w+

w+

¯ b

¯ t

νe h

e

W W

w +

¯ b

¯ t

¯ b

e

W

νe h

w+

¯ b

W

e

νe h

¯ t

32

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SLIDE 33

SM Hig Higgs gs Signal ignal Strengt engths hs in in ep ep

Uta & Max Klein, Contribution to HL/HE Workshop, 4.4.2018, preliminary.

àNC and CC DIS together over-constrain Higgs couplings in a combined SM fit.

ZZàH 25 fb 150 fb WWàH LHeC 200 fb FCC-eh 1 pb

Ee=60 GeV

HWW and HZZ signal strengths measured at once in DIS via selection of the final state (e or ν) submitted to EU strategy CERN-ACC-Note-2018-0084

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SLIDE 34

LHeC LHeC and and HL-LHC HL-LHC Hig Higgs gs Pros

  • spect

pects

preliminary 2%

HL-LHC prospects using new CMS projections (3ab-1) with two scenarios, S1 and S2, in a SM coupling fit

à Amazing prospect for measuring fundamental Higgs couplings to high precision (dark blue) at LHC with pp + ep using SM assumptions.

Hcc@pp: ~2.0-5.5 σSM@HL-LHC [HL-LHC Oct 2017]

submitted to ECFA:

34

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SLIDE 35

35

Published in book 1 of FCC

slide-36
SLIDE 36

36

Draft 9.4. – in preparation

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SLIDE 37

50 journal papers on BSM with LHeC in recent years

Thanks to Hao Sun

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SLIDE 38

38

Scalar Portal: Dark Scalar

slide-39
SLIDE 39

39

Ster erile ile Neut Neutrinos inos at ep ep collider colliders

O.Fischer

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SLIDE 40

Higgsino search at FCC-eh

Higgsino production

Typical signal: electron + jet + missing energy

  • C. Han, R. Li, R. Pan, K. Wang, arXiv:1802.03679

Higgsino: Higgs partner in supersymmetry, difficult to probe at the LHC(C. Han et al, JHEP 1402 (2014) 049)

preliminary result

Higgsino mass (GeV)

Standard model main backgrounds

1% sys.

40

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SLIDE 41

Out Outlook look and and Conc

  • nclus

lusions ions

q Prog

  • gres

ess in in de devis ising ing concur concurrent ent ep/ ep/pp pp running unning

q Unique Unique DIS facilit acility at CERN N wit ith h 10 1034

34 ins

instant antaneous aneous luminos luminosit ity, , opens

  • pens new

new hor horiz izon

  • n for
  • r par

partic icle le phy physics ics

q PERLE LE colla collabor boration ion for

  • rmed,

med, concept conceptual ual des design ign

q Demons emonstrator

  • r for
  • r ERL;

L; en envis isioned ioned at Or Orsay ay

q Fir First 802 802 MHz Hz ca cavit ity pr produced

  • duced

q Complet

  • mplete

e des design ign of

  • f FC

FCC-eh

  • eh det

detect ector

  • r

q Complement

  • mplementar

arit ities ies of

  • f the

he ep/ ep/pp pp pr prog

  • grams

ams strong

  • ngly

benef benefit its HL( HL(HE HE)-LHC

  • LHC,

, FC FCC pr pros

  • spect

pects: : q Combining

  • mbining pp

pp wit ith h ep ep, , a a ver ery po power erful ul Hig Higgs gs facilit acility

q Precis ecise e meas measur urement ements and and dis disco cover eries ies in in QC QCD q Explor xploration ion of

  • f new

new nuc nuclear lear subs ubstruct uctur ure e in in new new domains domains

q Unpr Unprecedent ecedented ed pr precis ecision ion in in top

  • p phy

physics ics topics

  • pics

q Addit ditional ional sens ensit itiv ivit ity to

  • phy

physics ics BSM

41

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SLIDE 42

42

Additional slides

slide-43
SLIDE 43
slide-44
SLIDE 44

44

S.Forte PDF uncertainty on Higgs production at LHC will become negligible due to measurements a the LHeC

slide-45
SLIDE 45

45

Impact mpact of

  • f LHeC

LHeC at small mall x x

slide-46
SLIDE 46
  • LHeC F2 and FL data will have discriminatory

power on models.

Small-x: inclusive

NLO DGLAP cannot accommodate F2 and FL in presence of saturation

46

  • N. Armesto
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SLIDE 47

eA eA: : dif diffract activ ive

47

Saturation effects

  • Elastic VM:

saturation, nGPDs.

  • N. Armesto
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SLIDE 48
  • improve

limits on BR(t→γu), BR(t→Hu) considerably

LHeC

MVA

FCC-ep

cut-based 95% CL

➞ test SUSY, little Higgs, technicolor...

48

Ee=60 GeV 1000 fb-1

LHeC

FC FCNC NC Branc anching hing Ratios ios at Collider

  • lliders

C.Schwanenberger

slide-49
SLIDE 49

49 C.Schwanenberger

slide-50
SLIDE 50

50

B.Biswal, R.Godbole, S.Kumar, B.M., S.Raychaudhuri Phy hys.R .Rev.Let .Lett. . 109 109 (2012) 2012) 261801 261801

Model independent separation of HWW and HZZ coupling, unique capability of ep collisions, not available in pp and e+e- collisions Can consider azimuthal angle correlation between scattered neutrino and quark. Other

  • bservables can be used too.

Structure of HVV couplings

slide-51
SLIDE 51

51

slide-52
SLIDE 52

52

Ster erile ile Neut Neutrinos inos at ep ep collider colliders

O.Fischer

slide-53
SLIDE 53

53

O.Fischer

slide-54
SLIDE 54

54

Cross-sections in the SM Considering highly asymmetric collisions

slide-55
SLIDE 55

55

Effective vertices. Note the dependence on momenta in non-SM

  • vertices. This induces significant impact on scattering kinematics.
  • M. Kumar et al.[1509.04016]
slide-56
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56

Also sensitivity to structure of hhh coupling

Lambda_HHH measured within 10-15%