Mirror matter and heavy singlet neutrino oscillations in the early universe

被引：16

作者：

Bell, NF ^{[1
]}

机构：

[1] Univ Melbourne, Sch Phys, High Energy Phys Res Ctr, Melbourne, Vic 3010, Australia

来源：

PHYSICS LETTERS B | 2000年 / 479卷 / 1-3期

关键词：

D O I：

10.1016/S0370-2693(00)00319-1

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We investigate the mixing of heavy gauge singlet neutrinos in a mirror matter model employing the seesaw mechanism. The parameter constraints that must be satisfied to prevent the overproduction of mirror matter in the early universe are deduced. We find that no fine tuning in the heavy neutral fermion sector is required for this minor matter model to satisfy cosmological constraints. Baryogenesis scenarios are briefly discussed in the context of the mirror model. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：257 / 264

页数：8

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