μ-e conversion with four generations

N. G. Deshpande, T. Enkhbat, T. Fukuyama, X. G. He, L. H. Tsai, K. Tsumura

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We study μ-e conversion with sequential four generations. A large mass for the fourth generation neutrino can enhance the conversion rate by orders of magnitude. We compare constraints obtained from μ-e conversion using experimental bounds on various nuclei with those from μ→eγ and μ→eēe. We find that the current bound from μ-e conversion with Au puts the most stringent constraint in this model. The relevant flavor changing parameter λ;μe=V*4μVe4 is constrained to be less than 1.6×10-5 for the fourth generation neutrino mass larger than 100 GeV. Implications for future μ-e conversion, μ→eγ and μ→eēe experiments are discussed.

Original languageEnglish
Pages (from-to)562-566
Number of pages5
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume703
Issue number5
DOIs
Publication statusPublished - Sep 26 2011
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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