Author: Edmonds, A.
Paper Title Page
WEPEA074 Optimisation of the Beam Line for COMET Phase-I 2681
 
  • A. Kurup, I. Puri, Y. Uchida, Y. Yap
    Imperial College of Science and Technology, Department of Physics, London, United Kingdom
  • R. Appleby, S.C. Tygier
    UMAN, Manchester, United Kingdom
  • R.T.P. D'Arcy, A. Edmonds, M. Lancaster, M. Wing
    UCL, London, United Kingdom
 
  The COMET experiment will search for very rare muon processes that will give us an insight into particle physics beyond the Standard Model. COMET requires an intense beam of muons with a momentum less than 70 MeV/c. This is achieved using an 8 GeV proton beam; a heavy metal target to primarily produce pions; a solenoid capture system; and a curved solenoid to perform charge and momentum selection. It was recently proposed to build COMET is two phases with physics measurements being made in both phases. This requires re-optimising the beam line for a shorter curved solenoid. This will affect the pion and muon yield; the momentum distributions at the detector; and the collimator scheme required. This paper will present the beam line design for COMET Phase-I, which aims to maximise the yield for low momentum muons suppressing sources of backgrounds in the beam.  
 
WEPEA075 Large Emittance Beam Measurements for COMET Phase-I 2684
 
  • A. Kurup, I. Puri, Y. Uchida, Y. Yap
    Imperial College of Science and Technology, Department of Physics, London, United Kingdom
  • R. Appleby, S.C. Tygier
    UMAN, Manchester, United Kingdom
  • R.T.P. D'Arcy, A. Edmonds, M. Lancaster, M. Wing
    UCL, London, United Kingdom
 
  The COMET experiment will search for very rare muon processes that will give us an insight into particle physics beyond the Standard Model. COMET requires an intense beam of muons with a momentum less than 70 MeV/c. This is achieved using an 8 GeV proton beam; a heavy metal target to primarily produce pions; a solenoid capture system; and a curved solenoid to perform charge and momentum selection. Understanding the pion production yield and transport properties of the beam line is an important part of the experiment. The beam line is a continuous solenoid channel, so it is only possible to place a beam diagnostic device at the end of the beam line. Building COMET in two phases provides the opportunity to investigate the pion production yield and to measure the transport properties of the beam line in Phase-I. This paper will demonstrate how this will be done using the experimental set up for COMET Phase-I.