Low scale seesaw model and lepton flavor violating rare B decays

Physical Review D - Particles, Fields, Gravitation and Cosmology 73 巻 7 号 074011-1-074011-10 頁 2006-04-12 発行
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タイトル ( eng )
Low scale seesaw model and lepton flavor violating rare B decays
作成者
Fujihara Takahiro
Kang Sin Kyu
Kim C. S.
Kimura Daiji
収録物名
Physical Review D - Particles, Fields, Gravitation and Cosmology
73
7
開始ページ 074011-1
終了ページ 074011-10
抄録
We study lepton flavor number violating rare B decays, b→slh± ll, in a seesaw model with low scale singlet Majorana neutrinos motivated by the resonant leptogenesis scenario. The branching ratios of inclusive decays b→slh±l?l 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→sτμ and τ→μγ can be as large as 10-10 and 10-9 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(μ→eγ). In the model, the lepton number asymmetries are vanishing.
言語
英語
資源タイプ 学術雑誌論文
出版者
American Physical Society
発行日 2006-04-12
権利情報
Copyright (c) 2006 The American Physical Society.
出版タイプ Version of Record(出版社版。早期公開を含む)
アクセス権 オープンアクセス
収録物識別子
[ISSN] 1550-7998
[DOI] 10.1103/PhysRevD.73.074011
[NCID] AA00773624
[DOI] http://dx.doi.org/10.1103/PhysRevD.73.074011