Author: Kozminski, J.F.
Paper Title Page
THP087 G4Beamline and MARS Comparison for Muon Collider Backgrounds 2297
 
  • M.A.C. Cummings, S.A. Kahn
    Muons, Inc, Batavia, USA
  • D. Hedin, A.O. Morris
    Northern Illinois University, DeKalb, Illinois, USA
  • J.F. Kozminski
    Lewis University, Romeoville, Illinois, USA
 
  Funding: Supported in part by SBIR Grant DE-SC0005447
Technological innovations in recent years have revived interest in muon colliders as the next generation energy frontier machine. The biggest challenge for muon colliders is that muons decay. Advances in muon cooling technology will make the focussing and acceleration of muons to TeV energies possible. The challenge for the detectors in such machines is overcoming the large backgrounds from muon decays in the colliding ring lattice that will inundate the interaction region (IR) and will make triggering and data reconstruction a challenge. Developing simulation tools that can reliably model the environment of the muon collider IR will be critical to physics analyses. We will need to expand the capabilities of current programs and use them to benchmark and verify results against each other. Here we are comparing an emerging capabiligy of G4beamline, an interface for physicists to GEANT4 code, with MARS, a mature program for particle fluences, in developing code for muon collider background studies
 
 
THP088 Beam Induced Detector Backgrounds at a Muon Collider 2300
 
  • S.A. Kahn, M.A.C. Cummings, T.J. Roberts
    Muons, Inc, Batavia, USA
  • D. Hedin, A.O. Morris
    Northern Illinois University, DeKalb, Illinois, USA
  • J.F. Kozminski
    Lewis University, Romeoville, Illinois, USA
 
  Funding: Supported in part by SBIR Grant DE-SC0005447
Muon colliders are considered to be an important future energy frontier accelerator. It is possible to build a large muon collider as a circular machine, even at multi-TeV energies, due to the greatly reduced synchrotron radiation expected from muons. In addition to the same physics processes present in an electron collider, a muon collider will have the potential to produce s-channel resonances such as the various Higgs states at an enhanced rate. For a muon collider with 750 GeV/c mu+ and mu- with 1012 mu per bunch we would expect 4.3x105 muon decays per meter. These muon decays will produce very energetic off momentum electrons that can produce detector backgrounds that can affect the physics. These backgrounds include electrons from muon decays, synchrotron radiation from the decay electrons, hadrons produced by photo-nuclear interactions, coherent and incoherent beam-beam pair production and Bethe-Heitler muon production. In this paper we will discuss these processes and calculate particle fluxes into the detector volume from these background processes.
 
 
THP090 Physics Validation of Monte Carlo Simulations for Detector Backgrounds at a Muon Collider 2303
 
  • A.O. Morris, D. Hedin
    Northern Illinois University, DeKalb, Illinois, USA
  • M.A.C. Cummings, S.A. Kahn, T.J. Roberts
    Muons, Inc, Batavia, USA
  • J.F. Kozminski
    Lewis University, Romeoville, Illinois, USA
 
  Muon colliders are considered to be an important future energy-frontier accelerator. A muon collider could be built as a circular accelerator into the TeV energy range as a result of the reduced synchrotron radiation expected from the larger rest mass of muons. For a muon collider with 750 GeV μ+ and μ- with 1012 μ per bunch, it can be expected that there would be 4.3×105 muon decays per meter per beam. These decays will produce very energetic off-momentum electrons that can produce detector backgrounds that can affect the physics. The main backgrounds include electrons from muon decays, synchrotron radiation from the decay electrons, hadrons produced by photonuclear interactions, coherent and incoherent beam-beam pair-production, and Bethe-Heitler muon production. In this paper we will discuss the simulation results in terms of observed physics processes in G4Beamline.