Grand-unified-theory baryogenesis after preheating

被引：163
作者：
Kolb, EW
Linde, A
Riotto, A
机构：
[1] UNIV CHICAGO, ENRICO FERMI INST, DEPT ASTRON & ASTROPHYS, CHICAGO, IL 60637 USA
[2] STANFORD UNIV, DEPT PHYS, STANFORD, CA 94305 USA
来源：
PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 21期
关键词：
D O I：
10.1103/PhysRevLett.77.4290
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
At the end of inflation the Universe is frozen in a near zero-entropy state with energy density in a coherent scalar field and must be ''defrosted'' to produce the observed entropy and baryon number. We propose that the baryon asymmetry is generated by the decay of supermassive grand-unified-theory (GUT) bosons produced nonthermally in a preheating phase after inflation. We show that baryogenesis is possible for an inflaton mass of order 10(13) GeV and a GUT Higgs boson mass of order 10(14) GeV, thus solving many drawbacks facing GUT baryogenesis in the old reheating scenario.
引用
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页码：4290 / 4293
页数：4
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