On leptogenesis with two degenerate right-chiral neutrinos

被引：2
|
作者：
Turzynski, K [1 ]
机构：
[1] Warsaw Univ, Inst Theoret Phys, Warsaw, Poland
来源：
CZECHOSLOVAK JOURNAL OF PHYSICS | 2005年 / 55卷 / 10期
关键词：
seesaw mechanism; leptogenesis; renormalization;
D O I：
10.1007/s10582-005-0128-5
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We analyze the predictions of the most general version of the supersymmetric minimal seesaw model with only two right-chiral neutrinos, which are degenerate in masses at the scale of Grand Unification. We apply the renormalization group technique to the running of the masses of the right-chiral neutrinos and the neutrino Yukawa, couplings and find that thermal leptogenesis can account for the observed baryon asymmetry of the Universe even with a low reheating temperature, allowing to overcome the gravitino problem.
引用
收藏
页码：1193 / 1204
页数：12
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