Decaying warm dark matter and neutrino masses

被引：100
|
作者：
Lattanzi, M.
Valle, J. W. F.
机构：
[1] Oxford Astrophys, Oxford OX1 3RH, England
[2] Univ Valencia, CSIC, Inst Fis Corpuscular, E-46071 Valencia, Spain
来源：
PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 12期
关键词：
D O I：
10.1103/PhysRevLett.99.121301
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Neutrino masses may arise from spontaneous breaking of ungauged lepton number. Because of quantum gravity effects the associated Goldstone boson-the majoron-will pick up a mass. We determine the lifetime and mass required by cosmic microwave background observations so that the massive majoron provides the observed dark matter of the Universe. The majoron decaying dark matter scenario fits nicely in models where neutrino masses arise via the seesaw mechanism, and may lead to other possible cosmological implications.
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页数：4
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