Big-bang nucleosynthesis through bound-state effects with a long-lived slepton in the NMSSM
Big-bang nucleosynthesis through bound-state effects with a long-lived slepton in the NMSSM
复制标题
通过 NMSSM 中长寿命睡眠子的束缚态效应进行大爆炸核合成
DOI：
10.1103/physrevd.90.035003
复制
发表时间：
2014
期刊：
影响因子：
--
通讯作者：
K. Kohri et al
中科院分区：
文献类型：
--
作者：
Han. C.;Sumi;T. (4) (70 authors);Kei Kotake;K. Kohri et al
我们证明了Li问题可以在次最小超对称标准模型中得到解决，其中作为次最轻超对称（SUSY）粒子的slepton是非常长寿的。这种长寿命的slepton在大爆炸核合成中引起奇异的核反应，并通过束缚态的形成破坏和产生核。我们研究的情况下，最轻的超对称粒子是单类中性伴子和双类中性伴子的参数空间中的允许区域，这是一致的暗物质和希格斯质量的观察。
We show that the Li problems can be solved in the next-to-minimal supersymmetric standard model where the slepton as the next-to-lightest supersymmetric (SUSY) particle is very long lived. Such a long-lived slepton induces exotic nuclear reactions in big-bang nucleosynthesis, and destroys and produces theandnuclei via bound state formation. We study cases where the lightest SUSY particle is singlino-like neutralino and bino-like neutralino to present allowed regions in the parameter space, which is consistent with the observations on the dark matter and the Higgs mass.