CERN Accelerating science

Article
Report number	CERN-ATS-2009-053 ; CERN-LHeC-Note-2009-001 ACC
Title	The Large Hadron-Electron Collider (LHEC) at the LHC
Abbreviation	LHC: Large Hadron Collider
Author(s)	Zimmermann, F (CERN) ; Bordry, F (CERN) ; Braun, H (CERN) ; Brüning, Oliver Sim (CERN) ; Burkhardt, H (CERN) ; Eide, A (CERN) ; de Roeck, A (CERN) ; Garoby, R (CERN) ; Holzer, B (CERN) ; Jowett, J (CERN) ; Linnecar, T (CERN) ; Mess, K (CERN) ; Osborne, J (CERN) ; Rinolfi, L (CERN) ; Schulte, D (CERN) ; Tomás, R (CERN) ; Tückmantel, Joachim (CERN) ; Vivoli, A (CERN) ; Omori, T (KEK, Tsukuba) ; Urakawa, J (KEK, Tsukuba) ; Willeke, F (Brookhaven, New York) ; Chattopadhyay, S (Cockcroft Inst., Warrington) ; Dainton, J (Cockcroft Inst., Warrington) ; Aksakal, H (TOBB ETU, Ankara) ; Nigde, U (TOBB ETU, Ankara) ; Sultansoy, S (TOBB ETU, Ankara) ; Klein, M (Liverpool U.)
Publication	2010
Imprint	24 Sep 2009
Number of pages	4
In:	Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.FR1PBC05
Subject category	Accelerators and Storage Rings
Accelerator/Facility, Experiment	CERN LHeC
Free keywords	linac-ring collider ; ring-ring collider ; luminosity ; power ; polarization ; beam-beam effects ; configurations ; energy recovery ; interaction region ; recirculating linac ; lattice design
Abstract	Sub-atomic physics at the energy frontier probes the structure of the fundamental quanta of the Universe. The Large Hadron Collider (LHC) at CERN opens for the first time the ‘terascale’ (TeV energy scale) to experimental scrutiny, exposing the physics of the Universe at the subattometric (∼ 10−19 m, 10−10 as) scale. The LHC will also take the science of nuclear matter to hitherto unparalleled energy densities. The hadron beams, protons or ions, in the LHC underpin this horizon, and also offer new experimental possibilities at this energy scale. A Large Hadron electron Collider, LHeC, in which an electron (positron) beam of energy 60 to 140 GeV is in collision with one of the LHC hadron beams, makes possible terascale leptonhadron physics. The LHeC is presently being evaluated in the form of two options, ‘ring-ring’ and ‘linac-ring’, either of which operate simultaneously with pp or ion-ion collisions in other LHC interaction regions. Each option takes advantage of recent advances in radio-frequency, in linear acceleration, and in other associated technologies, to achieve ep luminosity as large as 1033 cm−2s−1.

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