Low scale seesaw model and lepton flavor violating rare B decays
- Graduate School of Science, Hiroshima University, Higashi-Hiroshima, Japan, 739-8526 (Japan)
- Seoul National University, Seoul 151-734 (Korea, Republic of)
- Graduate School of Science, Hiroshima University, Higashi-Hiroshima, 739-8526 (Japan)
We study lepton flavor number violating rare B decays, b{yields}sl{sub h}{sup {+-}}l{sub l}{sup {+-}}, in a seesaw model with low scale singlet Majorana neutrinos motivated by the resonant leptogenesis scenario. The branching ratios of inclusive decays b{yields}sl{sub h}{sup {+-}}l{sub l}{sup {+-}} with two almost degenerate singlet neutrinos at TeV scale are investigated in detail. We find that there exists a class of seesaw model in which the branching fractions of b{yields}s{tau}{mu} and {tau}{yields}{mu}{gamma} can be as large as 10{sup -10} and 10{sup -9} within the reach of Super B factories, respectively, without being in conflict with neutrino mixings and mass-squared difference of neutrinos from neutrino data, invisible decay width of Z, and the present limit of Br({mu}{yields}e{gamma}). In the model, the lepton number asymmetries are vanishing.
- OSTI ID:
- 20782807
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 73, Issue 7; Other Information: DOI: 10.1103/PhysRevD.73.074011; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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