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Title: Enhancement of lepton flavor violation in a model with bimaximal mixing at the grand unification scale

Abstract

We study phenomenological predictions in the scenario with the quasidegenerate relation among neutrino Dirac masses, m{sub D1}{approx_equal}m{sub D2}<m{sub D3}, assuming the bimaximal mixing at the grand unification scale in supersymmetric standard models with right-handed neutrinos. A sufficient lepton number asymmetry can be produced for successful leptogenesis. The lepton flavor violating process {mu}{yields}e{gamma} can be enhanced due to the Majorana phase, so that it can be detectable at forthcoming experiments. The processes {tau}{yields}e{gamma} and {tau}{yields}{mu}{gamma} are suppressed because of the structure of neutrino Dirac masses, and their branching ratios are smaller than that of {mu}{yields}e{gamma}.

Authors:
; ; ; ;  [1];  [2];  [3]
  1. Department of Physics, Osaka University, Toyonaka, Osaka 560-0043 (Japan)
  2. Scuola Internazionale Superiore di Studi Avanzati, I-34014, Trieste (Italy)
  3. (Japan)
Publication Date:
OSTI Identifier:
20713810
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 72; Journal Issue: 9; Other Information: DOI: 10.1103/PhysRevD.72.093004; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ASYMMETRY; BRANCHING RATIO; CONSERVATION LAWS; ELECTRONS; FLAVOR MODEL; LEPTON NUMBER; MUONS; NEUTRINO OSCILLATION; NEUTRINOS; PARTICLE DECAY; PARTICLE PRODUCTION; PHOTONS; REST MASS; STANDARD MODEL; SUPERSYMMETRY; TAU PARTICLES

Citation Formats

Kanemura, Shinya, Matsuda, Koichi, Ota, Toshihiko, Takasugi, Eiichi, Tsumura, Koji, Shindou, Tetsuo, and Theory group, KEK, Tsukuba 305-0801. Enhancement of lepton flavor violation in a model with bimaximal mixing at the grand unification scale. United States: N. p., 2005. Web. doi:10.1103/PhysRevD.72.093004.
Kanemura, Shinya, Matsuda, Koichi, Ota, Toshihiko, Takasugi, Eiichi, Tsumura, Koji, Shindou, Tetsuo, & Theory group, KEK, Tsukuba 305-0801. Enhancement of lepton flavor violation in a model with bimaximal mixing at the grand unification scale. United States. doi:10.1103/PhysRevD.72.093004.
Kanemura, Shinya, Matsuda, Koichi, Ota, Toshihiko, Takasugi, Eiichi, Tsumura, Koji, Shindou, Tetsuo, and Theory group, KEK, Tsukuba 305-0801. Tue . "Enhancement of lepton flavor violation in a model with bimaximal mixing at the grand unification scale". United States. doi:10.1103/PhysRevD.72.093004.
@article{osti_20713810,
title = {Enhancement of lepton flavor violation in a model with bimaximal mixing at the grand unification scale},
author = {Kanemura, Shinya and Matsuda, Koichi and Ota, Toshihiko and Takasugi, Eiichi and Tsumura, Koji and Shindou, Tetsuo and Theory group, KEK, Tsukuba 305-0801},
abstractNote = {We study phenomenological predictions in the scenario with the quasidegenerate relation among neutrino Dirac masses, m{sub D1}{approx_equal}m{sub D2}<m{sub D3}, assuming the bimaximal mixing at the grand unification scale in supersymmetric standard models with right-handed neutrinos. A sufficient lepton number asymmetry can be produced for successful leptogenesis. The lepton flavor violating process {mu}{yields}e{gamma} can be enhanced due to the Majorana phase, so that it can be detectable at forthcoming experiments. The processes {tau}{yields}e{gamma} and {tau}{yields}{mu}{gamma} are suppressed because of the structure of neutrino Dirac masses, and their branching ratios are smaller than that of {mu}{yields}e{gamma}.},
doi = {10.1103/PhysRevD.72.093004},
journal = {Physical Review. D, Particles Fields},
number = 9,
volume = 72,
place = {United States},
year = {Tue Nov 01 00:00:00 EST 2005},
month = {Tue Nov 01 00:00:00 EST 2005}
}
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