R-parity violating flavor symmetries, recent neutrino data, and absolute neutrino mass scale

被引：5

作者：

Bhattacharyya, Gautam ^{[1
]}

Paes, Heinrich ^{[2
]}

Pidt, Daniel ^{[2
]}

机构：

[1] Saha Inst Nucl Phys, Kolkata 700064, India

[2] Tech Univ Dortmund, Fak Phys, D-44221 Dortmund, Germany

来源：

PHYSICAL REVIEW D | 2011年 / 84卷 / 11期

关键词：

SUPERSYMMETRY; CONSTRAINTS; DECAY;

D O I：

10.1103/PhysRevD.84.113009

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the role of a very general type of flavor symmetry in controlling the strength of R-parity violation in supersymmetric models. We assume that only leptons are charged under a global symmetry whose breaking induces lepton number (and, hence, R-parity) violation. The charge assignments of leptons under this symmetry are such that the total number of independent lepton number violating couplings is reduced from 39 to 6. The most severe constraints on these flavor-correlated couplings arise from neutrino masses and mixing as well as from the nonobservation of K-L -> mu e. We find that such a scenario predicts an almost vanishing smallest neutrino mass eigenvalue, allowing the upcoming generation of neutrinoless double beta decay experiments to shed light on the hierarchy.

引用

页数：7

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