Large neutrino asymmetries from neutrino oscillations

被引：170

作者：

Foot, R

Thomson, MJ

Volkas, RR

机构：

[1] Research Centre for High Energy Physics, School of Physics, University of Melbourne, Parkville

来源：

PHYSICAL REVIEW D | 1996年 / 53卷 / 10期

关键词：

D O I：

10.1103/PhysRevD.53.R5349

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We reexamine neutrino oscillations in the early universe. Contrary to previous studies, we show that large neutrino asymmetries can arise due to oscillations between ordinary neutrinos and sterile neutrinos. This means that the big bang nucleosynthesis (BBN) bounds on the mass and mixing of ordinary neutrinos with sterile neutrinos can be evaded. Also, it is possible that the neutrino asymmetries dan be large enough (greater than or similar to 10%) to have a significant effect on BBN through nuclear reaction rates.

引用

页码：R5349 / R5353

页数：5

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