Cosmological baryon-number domain structure from symmetry breaking in grand unified field theories
Cosmological baryon-number domain structure from symmetry breaking in grand unified field theories
复制标题
大统一场论中对称破缺的宇宙重子数域结构
DOI：
10.1103/physrevlett.43.315
复制
发表时间：
1979
影响因子：
8.6
通讯作者：
F. Stecker
中科院分区：
文献类型：
--
作者：
Robert W. Brown;F. Stecker
我们认为，在大爆炸早期自发对称性破缺的大统一场论比完全重子不对称宇宙论更自然地导致具有区域结构的重子对称宇宙学。在因果无关的区域中，对称性以随机的方式被破坏，在宇宙尺度上既不支持重子，也不支持反重子过剩。讨论了支持这一宇宙论的论点和观测试验。
We suggest that grand unified field theories with spontaneous symmetry breaking in the very early big bang can lead more naturally to a baryon-symmetric cosmology with a domain structure than to a totally baryon-asymmetric cosmology. The symmetry is broken in a randomized manner in causally independent domains, favoring neither a baryon nor an antibaryon excess on a universal scale. Arguments in favor of this cosmology and observational tests are discussed.