NEUTRINO DECAY IN THE DOUBLET MAJORON MODEL

被引：7

作者：

KIKUCHI, H

MA, E

机构：

[1] Department of Physics, University of California, Riverside, Riverside

来源：

PHYSICS LETTERS B | 1994年 / 335卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(94)90376-X

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A new majoron model is presented within the framework of the seesaw mechanism. Its Higgs sector consists of only doublet representations and the lepton-number violation takes place at the same scale of the electroweak symmetry breaking. This model is different from the singlet- or triplet-majoron model in several respects: it is free from the rho-parameter constraint and it provides moderately fast neutrino decay, but the constraint from the stellar cooling of red giants is satisfied only with an imposed approximate symmetry. A tau neutrino as heavy as 10 MeV is possible in this model despite various cosmological and astrophysical constraints.

引用

页码：444 / 451

页数：8

共 29 条

[1] BIG-BANG NUCLEOSYNTHESIS CONSTRAINTS ON LIGHT SCALARS AND THE 17 KEV NEUTRINO HYPOTHESIS [J].