Baryogenesis through leptogenesis

被引：394

作者：

Barbieri, R

Creminelli, P

Strumia, A

Tetradis, N

机构：

[1] Scuola Normale Super Pisa, I-56126 Pisa, Italy

[2] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy

[3] Univ Pisa, Dipartimento Fis, I-56127 Pisa, Italy

[4] Univ Athens, Dept Phys, GR-15771 Athens, Greece

来源：

NUCLEAR PHYSICS B | 2000年 / 575卷 / 1-2期

关键词：

D O I：

10.1016/S0550-3213(00)00011-0

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Baryogenesis by heavy-neutrino decay and sphaleron reprocessing of both baryon and lepton number is reconsidered, paying special attention to the flavour structure of the general evolution equations and developing an approximate but sufficiently accurate analytic solution to the prototype evolution equation. Two different models of neutrino masses are examined, based on an Abelian U(1) or a non-Abelian U(2) family symmetry. We show that a consistent picture of baryogenesis can emerge in both cases, although with significant differences. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：61 / 77

页数：17

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