Baryogenesis in theories with large extra spatial dimensions

被引：51

作者：

Allahverdi, R

Enqvist, K

Mazumdar, A

Pérez-Lorenzana, A

机构：

[1] TU Muenchen, Dept Phys, D-85748 Garching, Germany

[2] Univ Helsinki, Dept Phys, FIN-00014 Helsinki, Finland

[3] Univ Helsinki, Helsinki Inst Phys, FIN-00014 Helsinki, Finland

[4] Abdus Salam Int Ctr Theoret Phys, I-34100 Trieste, Italy

[5] Inst Politecn Nacl, Ctr Invest & Estudios Avanzados, Dept Fis, Mexico City 07000, DF, Mexico

来源：

NUCLEAR PHYSICS B | 2001年 / 618卷 / 1-2期

基金：

芬兰科学院;

关键词：

D O I：

10.1016/S0550-3213(01)00474-6

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：

We describe a simple and predictive scenario for baryogenesis in theories with large extra dimensions which resembles Affleck-Dine baryogenesis. The Affleck-Dine field is a complex scalar field carrying a U(1)(chi) charge which is dynamically broken after the end of inflation. This generates an excess of chi over <(<chi>)over bar> which then decays into Standard Model fermions to produce an excess of baryons over antibaryons. Our model is very constrained because the Affleck-Dine field has to be sufficiently flat during inflation. It is also a source for density fluctuations which can be tested in the coming satellite and balloon experiments. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：277 / 300

页数：24

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