BARYOGENESIS VIA LEPTOGENESIS

被引:550
作者
LUTY, MA
机构
[1] UNIV CHICAGO,ENRICO FERMI INST,CHICAGO,IL 60637
[2] UNIV CHICAGO,DEPT PHYS,CHICAGO,IL 60637
来源
PHYSICAL REVIEW D | 1992年 / 45卷 / 02期
关键词
D O I
10.1103/PhysRevD.45.455
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
If right-handed Majorana neutrinos are added to the standard model, then lepton-number-violating out-of-equilibrium decays of right-handed neutrinos combined with anomalous electroweak processes can generate the baryon number of the Universe. We analyze this mechanism in detail, and determine the ranges of parameters for which the correct baryon number is generated. We find that the scenario works for a wide range of parameters in the neutrino sector, including right-handed neutrino masses ranging from approximately 1 TeV to approximately 10(19) GeV, depending on the assumptions made about the structure of the neutrino mass matrices.
引用
收藏
页码:455 / 464
页数:10
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