Phase effects from the general neutrino Yukawa matrix on lepton flavor violation

Journal Article · Thu Sep 01 04:00:00 EDT 2005 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.72.055012· OSTI ID:20711482

Kanemura, Shinya; Matsuda, Koichi; Ota, Toshihiko; Takasugi, Eiichi; Tsumura, Koji ^[1]; Shindou, Tetsuo ^[2]

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1. Department of Physics, Osaka University, Toyonaka, Osaka 560-0043 (Japan)
2. Scuola Internazionale Superiore di Studi Avanzati, Via Beirut 2-4, I-34014, Trieste (Italy)

We examine contributions from Majorana phases to lepton flavor violating processes in the framework of the minimal supersymmetric standard model with heavy right-handed neutrinos. All phases in the complex neutrino Yukawa matrix are taken into account in our study. We find that in the scenario with universal soft-breaking terms sizable phase effects can appear on the lepton flavor violating processes such as {mu}{yields}e{gamma}, {tau}{yields}e{gamma}, and {tau}{yields}{mu}{gamma}. In particular, the branching ratio of {mu}{yields}e{gamma} can be considerably enhanced due to the Majorana phases, so that it can be much greater than that of {tau}{yields}{mu}{gamma}.

• OSTI ID: 20711482
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 5 Vol. 72; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BRANCHING RATIO
ELECTRONS
FLAVOR MODEL
MUONS
NEUTRINOS
PARTICLE DECAY
PHOTONS
REST MASS
STANDARD MODEL
SUPERSYMMETRY
TAU PARTICLES