Soft leptogenesis and gravitino dark matter in gauge mediation
Soft leptogenesis and gravitino dark matter in gauge mediation
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DOI:
10.1016/j.physletb.2010.10.031
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发表时间:
2010-07
影响因子:
4.4
通讯作者:
K. Hamaguchi;N. Yokozaki
中科院分区:
文献类型:
--
作者:
K. Hamaguchi;N. Yokozaki
We study soft leptogenesis in gauge mediated supersymmetry breaking models with an enhanced A-term for the right-handed neutrino. We find that this scenario can explain the baryon asymmetry of the present universe, consistently with the gravitino dark matter for a wide range of gravitino mass m3/2=O(MeV)–O(GeV). We also propose an explicit model which induces the necessary A-term for the right-handed neutrino.