2002/03/31 by Ryuichiro Kitano, Masafumi Koike, Yasuhiro Okada · 2 citations
Physics and Astronomy · #hep-ph
paper · pdf · doi:10.1103/physrevd.66.096002
published as Phys.Rev.D66:096002,2002; Erratum-ibid.D76:059902,2007 · LaTeX, 37 pages, 12 figures
arxiv created 2002/08/20 · arxiv updated 2014/11/17
The coherent muon-electron conversion rates in various nuclei are calculated for general lepton flavor violating interactions. We solve the Dirac equations numerically for the initial state muon and the final state electron in the Coulomb force, and perform the overlap integrals between the wave functions and the nucleon densities. The results indicate that the conversion branching ratio increases for a light nucleus up to the atomic number Z ~ 30, is largest for Z = 30 -- 60, and becomes smaller for a heavy nucleus with Z > (~ 60). We also discuss the uncertainty from the input proton and neutron densities. The atomic number dependence of the conversion ratio calculated here is useful to distinguish theoretical models with lepton flavor violation.