2003/07/21 by T. E. Clark, S. T. Love · 1 citation
Engineering · Physics and Astronomy · #Muon and positron interactions and applications #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.1142/s0217732304013143
published as Mod.Phys.Lett. A19 (2004) 297-306 · 12 pages, LaTeX, 1 figure
arxiv created 2003/07/21 · openalex publication_date 2004/02/06 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The electron and muon number violating muonium–antimuonium oscillation process can proceed provided that neutrinos have nonzero masses and mix among the various generations. Modifying the Standard Model only by the inclusion of singlet right-handed neutrino fields and allowing for general neutrino masses and mixings, the leading order matrix element contributing to this process is computed. For the particularly interesting case where the neutrino masses are generated by a seesaw mechanism with a very large Majorana mass M R ≫M W , it is found that both the very light and very heavy Majorana neutrinos each give comparable contributions to the oscillation time scale proportional to [Formula: see text]. Present experimental limits set by the non-observation of the oscillation process sets a lower limit on M R of roughly of order 10 4 GeV.