arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1507.01010hep-ph
收藏

Dirac gauginos约束模型中的暗物质

Dark matter scenarios in a constrained model with Dirac gauginos

Mark D. Goodsell, Manuel E. Krauss, Tobias Müller, Werner Porod, Florian Staub

摘要:

我们进行了第一次分析的暗物质的情况下,在一个约束模型与狄拉克Gauginos。所研究的模型是约束最小狄拉克-高吉诺超对称标准模型(CMDGSSM),其中高吉诺的马约拉纳质量项消失。然而,$R$ -对称性在希格斯扇区被明确的和/或有效的$B_μ$ -项打破。这导致费米子扇区中狄拉克态之间的质量分裂,而提供暗物质候选者的中性伴子成为伪狄拉克态。我们讨论了两种情况:统一在统一的统一尺度的所有标量质量的普遍情况下,与非普遍的希格斯软条款的情况下。我们确定了不同的区域中的参数空间,fullfil从暗物质丰度,超对称性和直接暗物质搜索和希格斯质量的限制的所有约束。这些点中的大多数都可以用下一代直接暗物质探测实验来测试。

英文摘要:

We perform the first analysis of Dark Matter scenarios in a constrained model with Dirac Gauginos. The model under investigation is the Constrained Minimal Dirac Gaugino Supersymmetric Standard model (CMDGSSM) where the Majorana mass terms of gauginos vanish. However, $R$-symmetry is broken in the Higgs sector by an explicit and/or effective $B_μ$-term. This causes a mass splitting between Dirac states in the fermion sector and the neutralinos, which provide the dark matter candidate, become pseudo-Dirac states. We discuss two scenarios: the universal case with all scalar masses unified at the GUT scale, and the case with non-universal Higgs soft-terms. We identify different regions in the parameter space which fullfil all constraints from the dark matter abundance, the limits from SUSY and direct dark matter searches and the Higgs mass. Most of these points can be tested with the next generation of direct dark matter detection experiments.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑