Oscillation of heavy sterile neutrino in decay of B → μeπ

被引：47

作者：

Cvetic, Gorazd ^{[1
]}

Kim, C. S. ^{[2
,3
]}

Koegerler, Reinhart ^{[4
]}

Zamora-Saa, Jilberto ^{[1
]}

机构：

[1] Univ Tecn Federico Santa Maria, Dept Phys, Valparaiso, Chile

[2] Yonsei Univ, Dept Phys, Seoul 120749, South Korea

[3] Yonsei Univ, IPAP, Seoul 120749, South Korea

[4] Univ Bielefeld, Dept Phys, D-33501 Bielefeld, Germany

来源：

PHYSICAL REVIEW D | 2015年 / 92卷 / 01期

关键词：

DOUBLE-BETA DECAY; MAJORANA NEUTRINOS; LEPTON-NUMBER; CP VIOLATION; BARYON-NUMBER; UPPER-BOUNDS; LHC; SEARCH; MASS; LIMITS;

D O I：

10.1103/PhysRevD.92.013015

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In a scenario with two almost mass degenerate heavy sterile Majorana neutrinos with a mass similar to 1 GeV, we present the semileptonic decay widths of heavy charged pseudoscalars such as B mesons, either lepton number violating (B-+/- -> mu(+/-)e(+/-)pi(+/-)), or lepton number conserving (B-+/- -> mu(+/-)e(+/-)pi(+/-)), mediated by such on-shell neutrinos. It had been explained in the literature that such decays may be eventually detected, and that they can present even detectable CP violation effects. In this work we point out that, in addition, such decays may present detectable effects of heavy neutrino oscillation, allowing us to extract the oscillation length and thus the heavy neutrino mass difference Delta M-N, as well as a CP-violating Majorana phase.

引用

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