Lepton flavor violating decays as probes of neutrino mass spectra and heavy Majorana neutrino masses

Journal Article · Fri Dec 01 04:00:00 EST 2006 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.74.113009· OSTI ID:20868079

Wanlei, Guo ^[1]

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1. Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080 (China)

We investigate the lepton flavor violating (LFV) rare decays in the supersymmetric minimal seesaw model in which the Frampton-Glashow-Yanagida ansatz is incorporated. The branching ratio of {mu}{yields}e{gamma} is calculated in terms of the snowmass points and slopes (SPS). We find that the inverted mass hierarchy is disfavored by all SPS points. In addition, once the ratio of BR({tau}{yields}{mu}{gamma}) to BR({mu}{yields}e{gamma}) is measured, one may distinguish the normal and inverted neutrino mass hierarchies, and confirm the masses of heavy right-handed Majorana neutrinos by means of the LFV processes and the thermal leptogenesis mechanism. It is worthwhile to stress that this conclusion is independent of the supersymmetric parameters.

• OSTI ID: 20868079
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 11 Vol. 74; 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
MASS SPECTRA
MUONS
NEUTRINOS
PARTICLE DECAY
PHOTONS
REST MASS
SUPERSYMMETRY
TAU PARTICLES