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Rinolfi, L.

Paper Title Page
WEOAG01 Prospects for a Large Hadron Electron Collider (LHeC) at the LHC 1903
 
  • M. Klein
    Liverpool University, Science Faculty, Liverpool
  • H. Aksakal
    N. U, Nigde
  • F. Bordry, H.-H. Braun, O. S. Brüning, H. Burkhardt, R. Garoby, J. M. Jowett, T. P.R. Linnecar, K. H. Mess, J. A. Osborne, L. Rinolfi, D. Schulte, R. Tomas, J. Tuckmantel, F. Zimmermann, A. de Roeck
    CERN, Geneva
  • S. Chattopadhyay, J. B. Dainton
    Cockcroft Institute, Warrington, Cheshire
  • A. K. Ciftci
    Ankara University, Faculty of Sciences, Tandogan/Ankara
  • A. Eide
    EPFL, Lausanne
  • B. J. Holzer
    DESY, Hamburg
  • P. Newman
    Birmingham University, Birmingham
  • E. Perez
    CEA, Gif-sur-Yvette
  • S. Sultansoy
    TOBB ETU, Ankara
  • A. Vivoli
    LAL, Orsay
  • F. J. Willeke
    BNL, Upton, New York
 
  The LHeC collides a lepton beam with one of the intense, LHC, hadron beams. It achieves both e± interactions with quarks at the terascale, at eq masses in excess of 1 TeV, with a luminosity of about 1033 cm-2 s-1, and it also enables a sub-femtoscopic probe of hadronic matter at unprecedented chromodynamic energy density, at Bjorken-x values down to 10-6 in the deep inelastic scattering domain. The LHeC combines the LHC infrastructure with recent advances in radio-frequency, in linear acceleration and in other associated technologies, to enable two proposals for TeV ep collisions: a "ring-ring" option in which 7 TeV protons (and ions) collide with about 70 GeV electrons/positrons in a storage ring in the LHC tunnel and a "linac-ring" option based on an independent superconducting linear accelerator enabling single-pass collisions of electrons and positrons of up to about 140 GeV with an LHC hadron beam. Both options will be presented and compared. Steps are outlined for completing a Conceptual Design Review of the accelerator complex, beam delivery, luminosity, physics and implications for experiment, following declared support by ECFA and by CERN for a CDR.  
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WEPP154 Linac-LHC ep Collider Options 2847
 
  • F. Zimmermann, F. Bordry, H.-H. Braun, O. S. Brüning, H. Burkhardt, R. Garoby, T. P.R. Linnecar, K. H. Mess, J. A. Osborne, L. Rinolfi, D. Schulte, R. Tomas, J. Tuckmantel, A. de Roeck
    CERN, Geneva
  • H. Aksakal
    N. U, Nigde
  • S. Chattopadhyay
    Cockcroft Institute, Warrington, Cheshire
  • A. K. Ciftci
    Ankara University, Faculty of Sciences, Tandogan/Ankara
  • J. B. Dainton
    Liverpool University, Science Faculty, Liverpool
  • A. Eide
    EPFL, Lausanne
  • B. J. Holzer
    DESY, Hamburg
  • M. Klein
    University of Liverpool, Liverpool
  • S. Sultansoy
    TOBB ETU, Ankara
  • A. Vivoli
    LAL, Orsay
  • F. J. Willeke
    BNL, Upton, New York
 
  We describe various parameter scenarios for a ring-linac ep collider based on LHC and an independent s.c. electron linac. Luminosities of order 1032/cm2/s can be achieved with a standard ILC-like linac, operated either in pulsed or cw mode, with acceptable beam power. Reaching much higher luminosities, up to 1034/cm2/s and beyond, would require the use of two linacs and the implementation of energy recovery. Advantages and challenges of a ring-linac ep collider vis-a-vis an alternative ring-ring collider are discussed.