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Title: Low scale seesaw model and lepton flavor violating rare B decays

Abstract

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.

Authors:
; ;  [1];  [2];  [3]
  1. Graduate School of Science, Hiroshima University, Higashi-Hiroshima, Japan, 739-8526 (Japan)
  2. Seoul National University, Seoul 151-734 (Korea, Republic of)
  3. Graduate School of Science, Hiroshima University, Higashi-Hiroshima, 739-8526 (Japan)
Publication Date:
OSTI Identifier:
20782807
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 73; Journal Issue: 7; Other Information: DOI: 10.1103/PhysRevD.73.074011; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ASYMMETRY; B MESONS; B QUARKS; BRANCHING RATIO; CONSERVATION LAWS; FLAVOR MODEL; LEPTON NUMBER; MIXING; MUONS; NEUTRINO OSCILLATION; NEUTRINOS; PARTICLE WIDTHS; REST MASS; S QUARKS; SEMILEPTONIC DECAY; TEV RANGE

Citation Formats

Fujihara, T, Kimura, D, Morozumi, T, Kang, S K, Kim, C S, and Department of Physics, Yonsei University, Seoul 120-749. Low scale seesaw model and lepton flavor violating rare B decays. United States: N. p., 2006. Web. doi:10.1103/PHYSREVD.73.074011.
Fujihara, T, Kimura, D, Morozumi, T, Kang, S K, Kim, C S, & Department of Physics, Yonsei University, Seoul 120-749. Low scale seesaw model and lepton flavor violating rare B decays. United States. https://doi.org/10.1103/PHYSREVD.73.074011
Fujihara, T, Kimura, D, Morozumi, T, Kang, S K, Kim, C S, and Department of Physics, Yonsei University, Seoul 120-749. 2006. "Low scale seesaw model and lepton flavor violating rare B decays". United States. https://doi.org/10.1103/PHYSREVD.73.074011.
@article{osti_20782807,
title = {Low scale seesaw model and lepton flavor violating rare B decays},
author = {Fujihara, T and Kimura, D and Morozumi, T and Kang, S K and Kim, C S and Department of Physics, Yonsei University, Seoul 120-749},
abstractNote = {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.},
doi = {10.1103/PHYSREVD.73.074011},
url = {https://www.osti.gov/biblio/20782807}, journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 7,
volume = 73,
place = {United States},
year = {Sat Apr 01 00:00:00 EST 2006},
month = {Sat Apr 01 00:00:00 EST 2006}
}