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
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
收藏
页码:444 / 451
页数:8
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