Author: Leveling, A.F.
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.