Probing gaugino coannihilation with displaced vertex searches
Probing gaugino coannihilation with displaced vertex searches
复制标题
DOI：
10.22323/1.268.0036
复制
发表时间：
2016-05
期刊：
影响因子：
--
通讯作者：
N. Nagata
中科院分区：
文献类型：
--
作者：
N. Nagata
超对称理论中的类比诺暗物质往往会产生过剩。这个问题可以避免，如果有另一个高吉诺，其质量接近的双质量，使它提高湮灭率的双暗物质通过共湮灭。我们在高尺度超对称模型中研究了这种可能性，并表明搜索具有位移顶点的长寿命粒子可以在即将到来的LHC实验中测试bino-gaugino共湮灭场景。
Bino-like dark matter in supersymmetric theories tends to suffer from over-production. This problem can be evaded if there is another gaugino which has a mass close to the bino mass so that it enhances the annihilation rate of bino dark matter through coannihilation. We study such possibilities in high-scale supersymmetric models, and show that searches for long-lived particles with displaced vertices can test the bino-gaugino coannihilation scenario in the forthcoming LHC experiments.