Big-bang nucleosynthesis with long-lived charged slepton
Big-bang nucleosynthesis with long-lived charged slepton
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DOI:
10.1016/j.physletb.2007.03.063
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发表时间:
2007-06-14
影响因子:
4.4
通讯作者:
Moroi, Takeo
中科院分区:
文献类型:
--
作者:
Kawasaki, Masahiro;Kohri, Kazunori;Moroi, Takeo
We consider constraints on long-lived charged scalar leptons (l) over bar (+/-) in supersymmetric models, where gravitino is the lightest superparticle. We study the decay and hadronization processes of (l) over tilde (+/-). We also take into account the significant enhancement of L-6 production due to the formation of the bound-state (He-4 (l) over tilde (-)); for this purpose, we use the reaction rate given by the most recent calculation based on coupled-channel method. (c) 2007 Elsevier B.V. All rights reserved.