Lower bounds on lepton flavor violating branching ratios in a radiative seesaw model

DOI DOI HANDLE Web Site Web Site 被引用文献1件 参考文献33件 オープンアクセス

書誌事項

公開日
2022-05-16
資源種別
journal article
権利情報
  • https://creativecommons.org/licenses/by/4.0/
DOI
  • 10.1103/physrevd.105.095018
  • 10.48550/arxiv.2202.00931
公開者
American Physical Society (APS)

この論文をさがす

説明

We study the lepton flavor violating decays such as $μ\to eγ$, $τ\to eγ$, $τ\to μγ$ in the three-loop radiative seesaw model proposed by Krauss, Nasri, and Trodden. In this model, the relevant coupling constants are larger for the heavier scalars that run inside loop diagrams to generate the appropriate magnitude of neutrino masses. Imposing a criterion that all the coupling constants must be small enough to be treated perturbatively, we find an upper bound on the mass of one of the scalars. By combining it with neutrino mass parameters, we derive lower bounds on the branching ratios of the lepton flavor violating processes. In a case with the inverted mass ordering and best-fit neutrino oscillation parameters, one of the lower bounds is $\text{Br}(μ\to eγ)>1.1\times 10^{-13}$, which is within the reach of the MEG~II experiment.

Published version in PRD, 18 pages, 6 figures

収録刊行物

  • Physical Review D

    Physical Review D 105 (9), 2022-05-16

    American Physical Society (APS)

被引用文献 (1)*注記

もっと見る

参考文献 (33)*注記

もっと見る

関連プロジェクト

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ