Author: Shatilov, D.N.
Paper Title Page
MOODB1 Beam-Beam Limit in an Integrable System 75
 
  • A. Valishev, S. Nagaitsev
    Fermilab, Batavia, USA
  • V.V. Danilov
    ORNL, Oak Ridge, Tennessee, USA
  • D.N. Shatilov
    BINP SB RAS, Novosibirsk, Russia
 
  Funding: Fermi Research Alliance, LLC operates Fermilab under contract No. DE-AC02-07CH11359 with the U.S. Department of Energy.
Round colliding beams have been proposed as a way to push the attainable beam-beam tune shift limit, and recent successful experiments at the VEPP-2000 collider at BINP demonstrated the viability of the concept. In a round-beam system the dynamical stability is improved by introducing an additional integral of motion, which effectively reduces the system from a two and a half dimensional to one and a half dimensional. In this report we discuss the possible further improvement through adding the second integral of motion and thus making the system fully integrable. We explore the ultimate beam-beam limit in such a system using numerical simulations taking into account various imperfections.
 
slides icon Slides MOODB1 [1.019 MB]  
 
TUPBA21 Beam-Beam Studies for HL-LHC 568
 
  • A. Valishev
    Fermilab, Batavia, USA
  • D. Banfi, J. Barranco
    EPFL, Lausanne, Switzerland
  • T. Pieloni
    CERN, Geneva, Switzerland
  • D.N. Shatilov
    BINP SB RAS, Novosibirsk, Russia
 
  Funding: Fermi Research Alliance, LLC operates Fermilab under contract with the U.S. Dept. of Energy. This work was supported by the US LARP. The HiLumi LHC Design Study is funded by the European Commission.
The analysis of beam-beam effects for the High Luminosity LHC upgrade is in progress as a part of HiLumi LHC Design Study. We report on the current status of beam-beam simulations with the particular emphasis on single and multi-particle weak-strong tracking studies. We evaluate the latest LH-LHC performance scenario, and outline the plan of further research.