Finite temperature corrections to weak rates prior to nucleosynthesis

被引：14

作者：

Brown, LS ^{[1
]}

Sawyer, RF

机构：

[1] Univ Calif Santa Barbara, Inst Theoret Phys, Santa Barbara, CA 93106 USA

[2] Univ Washington, Dept Phys, Seattle, WA 98195 USA

[3] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

来源：

PHYSICAL REVIEW D | 2001年 / 63卷 / 08期

关键词：

D O I：

10.1103/PhysRevD.63.083503

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have reexamined the electromagnetic corrections to the weak interaction rates for the transformation of neutrons to protons, and protons to neutrons, in the early universe, before freeze-out. We derive compact expressions for these rates in terms of thermal expectation values of products of fields, and we give explicit constructions of the terms to order e(2). We disagree in several respects with results in the literature.

引用

页数：20

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