Allowable low-energy E6 subgroups from leptogenesis

Allowable low-energy E6 subgroups from leptogenesis
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来自轻子发生的允许低能 E6 子群

DOI:
10.1016/s0370-2693(01)00577-9
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发表时间:
2000
期刊:
影响因子:
4.4
通讯作者:
U. Sarkar
U. Sarkar
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
T. Hambye;E. Ma;M. Raidal;U. Sarkar

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只有两个可行的低能E6子群:SU(3)C×SU(2)L×U(1)Y×U(1)或SU(3)C×SU(2)L×SU(2)′R×U(1)YL+Y′R,这不会消除宇宙中任何先前存在的轻子不对称性,这些不对称性可能是由重单态(右手)中微子衰变或任何其他机制产生的。他们也是两个最有利的E6亚群从最近的分析目前的中性电流数据。我们研究了瘦体发生的细节,以及这两个模型的一些显着实验特征。
There are only two viable low-energy E6subgroups: SU(3)C×SU(2)L×U(1)Y×U(1)Nor SU(3)C×SU(2)L×SU(2)′R×U(1)YL+Y′R, which would not erase any preexisting lepton asymmetry of the Universe that may have been created by the decay of heavy singlet (right-handed) neutrinos or any other mechanism. They are also the two most favored E6subgroups from a recent analysis of present neutral-current data. We study the details of the leptogenesis, as well as some salient experimental signatures of the two models.
DOI: 10.1103/physrevlett.81.1158
发表时间: 1998-08-10
影响因子: 8.6
作者:
Fukuda, Y;Hayakawa, T;Young, K
通讯作者: Young, K