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

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 LHeC LHeC Study udy Gr Group oup Many any thanks hanks to o M.D .D’Onof Onofrio io, , M.Klein .Klein and and U.Klein .Klein for or slides lides I nstitute for Collider P article Physics University of the Witw atersrand Int nter erpr pret eting ing the he LHC LHC Run un 2 2 da data a and and bey beyond, ond, ICTP , 31/ , 31/05/ 05/19 19

CERN Referees arXiv:1206.2913 arXiv:1211.4831 and 5102 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.

Organisation *) + FCC-he Working Groups PDFs, QCD Interna'onal Advisory Commi3ee Coordina'on Group Fred Olness, with CERN mandate to provide Claire Gwenlan “..Direc'on for ep/eA both at LHC+FCC” Accelerator+Detector+Physics Higgs Sergio Bertolucci (CERN/Bologna) Uta Klein, Nestor Armesto Nichola Bianchi (Frasca9) Masahiro Kuze Oliver Brüning – Co-Chair Frederick Bordry (CERN) BSM Andrea Gaddi Stan Brodsky (SLAC) Georges Azuelos, Erk Jensen Hesheng Chen (IHEP Beijing) Monica D’Onofrio Walid Kaabi Eckhard Elsen (CERN) Oliver Fischer Max Klein – Co-Chair Stefano Forte (Milano) Top Peter Kostka Andrew HuFon (Jefferson Lab) Olaf Behnke, Bruce Mellado Young-Kee Kim (Chicago) Chris9an Paul Newman Victor A Matveev (JINR Dubna) Schwanenberger Daniel Schulte Shin-Ichi Kurokawa (Tsukuba) eA Physics Frank Zimmermann Leandro Nisa9 (Rome) Nestor Armesto Leonid Rivkin (Lausanne) Small x 5(11) are members of the Herwig Schopper (CERN) – Chair Paul Newman, FCC coordina9on team Jurgen SchukraT (CERN) Anna Stasto Achille Stocchi (LAL Orsay) Detector OB+MK: FCC-eh coordinators John Womersley (ESS) Alessandro Polini Peter Kostka FCC IAC: Guenter Dissertori + *) 2018 3

Lay Layout out 4

J.Os .Osbor borne, ne, et et al al FC FCC-eh -eh 60 GeV ERL tangential to FCC-hh. IP: L for geological reasons. L= 1.5 10 34 Higher s, Q 2 , 1/x 5

M.Klein Ener Energy R Reco ecover ery Linac Linac f for LHeC LHeC/FCCeh FCCeh U(ERL) = 1/3 U(LHC) Concurrent operation to pp, LHC/FCC become 3 beam facilities. Power limit: 100 MW 10 34 cm -2 s -1 luminosity and factor of 15/120 (LHC/FCCeh) extension of Q 2 , 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.

Luminos Luminosit ity for or LHeC LHeC, , HE HE-LHeC -LHeC and and FC FCC Contains update on eA: 6x10 32 in e-Pb for LHeC. 7

Power erful ul ERL ERL for or Exper xperiment iments Collaboration of BINP , CERN, Daresbury/Liverpool, Jlab, Orsay INP+LAL CDR 2016/17, TDR 2018/19 .. https://indico.cern.ch/event/680603/ ERL facility: high current and energy arXiv:1705.08783 low energy nuclear, particle and astro-physics J. Phys. G45 (2018) 8

PERLE LE at Or Orsay ay 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 5.5 x 24m 2 CDR to appear in J Phys G [arXiv:1705. 08783] Strong low energy physics program A.Bogacz https://indico.cern.ch/event/698368/ 9

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PERLE LE Magnet gnets 70 70 dipoles dipoles 0.45-1.29 0.45-1.29 T 220 mm ±20 mm aperture, l=200,300,400 mm May be identical for hor+vert bend 7A/mm 2 (in grey area) water cooled DC operated 380 mm 250 mm 114 quadr 114 quadrupoles upoles max max 28T 28T/m m Common aperture of 40mm all arcs Two lengths: 100 and 150mm DC operated 11 P Thonet, A Milanese (CERN), C Vallerand (LAL), Y Pupkov (BINP)

F . Marhauser et al (Jlab) 1 st st 802 802 MHz Hz Cavit ity CERN-Jlab design, produced at Jefferson Laboratory November 2017 12 Goal: 16 MV/m, Q 0 > 10 10 operated in CW in the PERLE+LHeC ERLs, prototype also for FCC-ee

Init nitial ial 2K 2K Tes est of of 802 802 MHz Hz Nb Nb Cavit ity December ecember 2017 2017 Quality Factor 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. 13

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 LHeC Detector Basic Layout LHeC Detector Basic Layout P .Kostka All Numbers [cm] 1316 438 Muon Detector 580 275 Hadron Hadronic Calorimeter Hadron Fwd-Endcap 140 Bwd-Endcap Solenoid 108 Dipole Dipole 40 46 Central e - Fwd Bwd p/A Fwd-HCalo Bwd-HCalo Tracker Tracker Insert Insert Tracker Electromagnetic Calorimeter 170 140 40 40 Electromagn.- Electromagn.- Fwd-Endcap Bwd-Endcap 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 15 “On the Relation of the LHeC and the LHC” [arXiv:1211.5102]

P .Kostka FCC-he Detector Basic Layout FCC-he Detector Basic Layout All Numbers [cm] 1927 600 Muon Detector 433 1060 Hadron Hadron Hadronic Calorimeter Fwd-Endcap Bwd-Endcap 200 Dipole Solenoid Dipole 154 60 Central Fwd-HCalo Fwd 46 Bwd e - p/A Insert Tracker Tracker Bwd-HCalo Tracker Insert Electromagnetic Calorimeter 80 50 180 350 Electromagn.- Electromagn.- Fwd-Endcap Bwd-Endcap Length of Solenoid ~10m Based on the LHeC design; Solenoid&Dipoles between Electromagnetic Calorimeter and Hadronic Calorimeter. 16

Ins nstalla allation ion Study udy to o fit it int into o LHC LHC shut hutdo down n needs needs dir direct ected ed to o IP2 Andr ndrea ea Gad Gaddi di et et al al Detector fits in L3 magnet support Modular structure

Physics Highlights 18

LHeC LHeC Phy hysics ics Prog ogramme amme CDR, arXiv:1211.4831 and 5102 http://cern.ch/lhec 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 Strong coupling 0.1%; Full unfolding of PDFs; Gluon: low x: saturation?, high x: HL LHC searches …

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arXiv:1802.043317 Strong reduction of parton pdf uncertainties, with largeimpact on high- x physics in pp Achieve down to 0.1% error in α s 21

M.Klein High Precis High ecision ion for or pp pp 60 58 56 54 52 50 48 46 44 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Reduce educe pdf pdf er error or 2.8 2.8 MeV eV à Remo emove e PDF F uncer uncertaint ainty on on M W LHC LHC 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 Spacelik pacelike e M W to o 10 10 MeV eV from om ep ep uncer uncertaint ainty from om the he pr predict ediction ion of of the he à Elect lectroweak eak tes est at 0.01% 0.01% ! Hig Higgs gs cr cros oss-s -sect ection. ion. 22

eA eA Collis ollisions ions Extension of kinematic range of eN scattering by orders of magnitude in Q 2 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 23

eA eA: : inc inclus lusiv ive ● Large impact on nPDFs, possible to make a Pb fit without proton PDFs ● Large room for improvements: NC+CC at several energies, flavour decomposition,… 24

Dir irect ect Meas easur urement ement of of |V tb tb | | C.Schwanenberger Takes advantage that tt 1.000±0.01 LHeC production is suppressed in ep. (expected) FCC-eh with 2 ab -1 would further improve the result significantly. LHeC, LHeC , 100 100 fb -1 -1 25

Top op Quar Quark k Anomalous nomalous C.Schwanenberger Couplings ouplings ν e e - W + b t b _ q h b P = 1 in SM Dutta, Goyal, Kumar, Turk Cakir, Yilmaz, DELPHES DELPHES parametrisation Mellado, Eur. Phys. J. Denizli, Senol, Karadeniz, Sun, Wang, C75 (2015) no.12, 577 O. Cakir, Adv. High Energy arXiv:1602.04670 Kumar, Ruan, to be publ. Phys. 2017, 1572053 (2017) observation FCC-ep LHeC <0.14 observation <0.09 <0.04 <0.01 FCC-ep 26

Hig Higgs gs in in ep ep At LHC replace q It is is remar emarka kable ble tha hat VBF F lepton lines by quark lines dia diagrams ams wer ere e calcula calculated ed for or but dominantly gg à H lepton lept on nuc nucleon leon collis collisions ions bef befor ore for or pp! pp! q Small mall theor heoret etical ical uncer uncertaint ainties ies q Topological opological requir equirement ements ef effect ectiv ive e in in bac backg kground ound suppr uppres ession ion q Lar Large ge S/B w.r .r.t .t. . pp pp, , e.g. e.g. in in h à bb bb expect xpect S/B=3 27

LHeC LHeC, , a a Hig Higgs gs Facilit acility 28