Matter-antimatter asymmetry and neutrino properties

被引：72

作者：

Buchmüller, W

Plümacher, M

机构：

[1] DESY, Grp Theorie, D-22603 Hamburg, Germany

[2] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA

来源：

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS | 1999年 / 320卷 / 1-6期

关键词：

D O I：

10.1016/S0370-1573(99)00057-5

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The cosmological baryon asymmetry can be explained as remnant of heavy Majorana neutrino decays in the early universe. We study this mechanism for two models of neutrino masses with a large nu(mu) - nu(tau) mixing angle which are based on the symmetries SU(5) x U(1)(F) and SU(3)(c) x SU(3)(L) x SU(3)(R) x U(1)(F), respectively. In both cases B - L is broken at the unification scale Lambda(GUT) The models make different predictions for the baryogenesis temperature and the gravitino abundance. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：329 / 339

页数：11

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