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arXiv 2201.10628hep-ph
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CP破坏NMSSM中的暗物质

Dark Matter in the CP-violating NMSSM

Waqas Ahmed, Mark Goodsell, Shoaib Munir

摘要:

在次最小超对称标准模型中,对应于单重态希格斯粒子和单重态相互作用态的质量项之间存在着强相关性,它们都与参数$κ$成正比。如果这个参数是复杂的,那么在树的水平上,希格斯粒子和中性伴子的扇区中会出现明显的CP破坏,这与最小的情况不同。一个小的$κ$通常会产生一个$\cal{O}$(10)GeV的最轻的中性伴子,主要是单线态成分。在这种情况下,$κ$的相位除了改变五种希格斯玻色子的性质外,还可以对中性伴子暗物质的现象学产生至关重要的影响。在这项研究中,我们进行了第一次调查的遗迹丰度的暗物质的解决方案与子100 GeV的质量,获得的参数空间配置的模型,是一致的各种当前的实验数据。

英文摘要:

In the Next-to-Minimal Supersymmetric Standard Model there is a strong correlation between the mass terms corresponding to the singlet Higgs and the singlino interaction states, both of which are proportional to the parameter $κ$. If this parameter is complex, explicit CP-violation occurs in the Higgs as well as the neutralino sectors of the model at the tree level, unlike in the minimal scenario. A small magnitude of $κ$ typically yields a $\cal{O}$(10) GeV lightest neutralino with a dominant singlino component. In such a scenario, the phase of $κ$, beside modifying the properties of the five Higgs bosons, can also have a crucial impact on the phenomenology of the neutralino dark matter. In this study we perform a first investigation of this impact on the relic abundance of the dark matter solutions with sub-100 GeV masses, obtained for parameter space configurations of the model that are consistent with a variety of current experimental data.

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。

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