ELECTROWEAK BARYOGENESIS - A NUMERICAL STUDY IN 1 + 1 DIMENSIONS

被引：20

作者：

GRIGORIEV, D ^{[1
]}

SHAPOSHNIKOV, M ^{[1
]}

TUROK, N ^{[1
]}

机构：

[1] PRINCETON UNIV,JOSEPH HENRY LABS,PRINCETON,NJ 08544

来源：

PHYSICS LETTERS B | 1992年 / 275卷 / 3-4期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0370-2693(92)91608-C

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the recently proposed mechanism for electroweak baryogenesis in the standard Weinberg-Salam theory with a non-minimal Higgs sector, through simulations of an analog 1 + 1 dimensional theory, the abelian Higgs model with two Higgs fields. We start from a thermal configuration in the unbroken symmetry phase and mimic the phase transition by changing the scalar potential by hand. We include a term in the effective action obtained by integrating out fermions, which couples a C odd Higgs phase to the Chern-Simons number. The Higgs potential includes a C-violating phase, and this results in a systematic change in the Chern-Simons number of the universe during the transition. The simulations provide the first detailed verification of the electroweak baryogenesis mechanism in an ab initio finite temperature calculation.

引用

页码：395 / 402

页数：8

共 25 条

[1] SPHALERON TRANSITIONS AND BARYON ASYMMETRY - A NUMERICAL, REAL-TIME ANALYSIS [J].