Author: Striganov, S.I.
Paper Title Page
MOPMA21 An Optimization Study of the Target Subsystem for the New g-2 Experiment 345
 
  • C.Y. Yoshikawa, C.M. Ankenbrandt
    Muons, Inc, Illinois, USA
  • A.F. Leveling, N.V. Mokhov, J.P. Morgan, D.V. Neuffer, S.I. Striganov
    Fermilab, Batavia, USA
 
  Funding: Work supported by Fermi Research Alliance, LLC, under contract No. DE-AC02-07CH11359 with the U.S. Department of Energy
A precision measurement of the muon anomalous magnetic moment, aμ = (g-2)/2, was previously performed at BNL with a result of 2.2 - 2.7 standard deviations above the Standard Model (SM) theoretical calculations. The same experimental apparatus is being planned to run in the new Muon Campus at Fermilab, where the muon beam is expected to have less pion contamination and the extended dataset may provide a possible 7.5σ deviation from the SM, creating a sensitive and complementary benchmark for proposed SM extensions. We report here on a study performed on the target subsystem utilizing a new optimization technique that overcomes complexities of asymmetric particle production and depth of focus of a Li lens. This new technique is applied to an apparatus that is optimized for pions that have favourable phase space to create polarized daughter muons around the magic momentum of 3.094 GeV/c, which is needed by the downstream g 2 muon ring.
 
 
THPBA19 Storage Ring and Interaction Region Magnets for a μ+μ- Higgs Factory 1271
 
  • A.V. Zlobin, Y.I. Alexahin, V.V. Kapin, V.V. Kashikhin, N.V. Mokhov, S.I. Striganov, I.S. Tropin
    Fermilab, Batavia, USA
 
  Funding: Work supported by Fermi Research Alliance, LLC, under contract No. DE-AC02-07CH11359 with the U.S. Department of Energy and Muon Accelerator Program (MAP)
A low-energy Muon Collider (MC) offers unique opportunities to study the recently found Higgs boson. However, due to a relatively large beam emittance with moderate cooling in this machine, large-aperture high-field superconducting (SC) magnets are required. The magnets need also an adequate margin to operate at a large radiation load from the muon decay showers. General specifications of the SC dipoles and quadrupoles for the 125 GeV c.o.m. Higgs Factory with an average luminosity of ~2·1031 cm-2s−1 are formulated. Magnet conceptual designs and parameters are reported. The impact of the magnet fringe fields on the beam dynamics as well as the IR and lattice magnet protection from radiation are also reported and discussed.