Big bang nucleosynthesis with matter-antimatter domains

被引：32

作者：

Rehm, JB ^{[1
]}

Jedamzik, K ^{[1
]}

机构：

[1] Max Planck Inst Astrophys, D-85748 Garching, Germany

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.81.3307

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate big bang nucleosynthesis (BBN) in a cosmic environment characterized by a distribution of small-scale matter-antimatter domains which are predicted in some electroweak baryogenesis scenarios. We find that antimatter domains spoil agreement between BBN abundance yields and observationally inferred primordial abundance limits which allows us to derive limits on their presence in the early universe. However, if only small amounts of antimatter are present, BBN with low deuterium and low He-4, as seemingly favored by current observational data, is possible. [S0031-9007(98)07413-4].

引用

页码：3307 / 3310

页数：4