论文标题

Higgsino的不对称和直接检测约束,在NMSSM中具有非普遍的Higgs质量

Higgsino Asymmetry and Direct-Detection Constraints of Light Dark Matter in the NMSSM with Non-Universal Higgs Masses

论文作者

Wang, Kun, Zhu, Jingya, Jie, Quanlin

论文摘要

在这项工作中,我们研究了轻度暗物质的直接检测约束与非普遍的Higgs质量(NUHM)的最小超对称标准模型(NMSSM)中的直接检测约束,尤其是Higgsino不对称和自旋依赖性横截面之间的相关性。最后,我们得出以下结论:(i)依赖自旋的横截面与nmssm-nuhm中的暗物质$ \tildeχ^0_1 $在暗物质中的Higgsino不对称方形成正比。 (ii)对于高度单利主导的暗物质$ \tildeχ^0_1 $,遗物密度可以足够,但是希格斯诺的不对称和旋转依赖性横截面总是很小的。 (iii)在光线暗物质中具有较大的希格斯诺组件,希格斯诺的不对称性和自旋依赖性横截面可能很大,但是深色物质遗物密度始终很小,因此可以逃脱直接检测。 (iv)$ h_2 $ - 和$ z $ - funnel歼灭通道中的轻度暗物质可以由未来的Lux-Zeplin(LZ)7吨覆盖自旋依赖性检测。

In this work, we study the direct-detection constraints of light dark matter in the next-to minimal supersymmetric standard model (NMSSM) with non-universal Higgs masses (NUHM), especially the correlation between higgsino asymmetry and spin-dependent cross section. Finally, we get the following conclusions: (i) The spin-dependent cross section is proportional to the square of higgsino asymmetry in dark matter $\tildeχ^0_1$ in the NMSSM-NUHM. (ii) For highly singlino-dominated dark matter $\tildeχ^0_1$, the relic density can be sufficient, but the higgsino asymmetry and spin-dependent cross section is always small. (iii) With a sizeable higgsino component in the light dark matter, the higgsino asymmetry and spin-dependent cross section can be sizeable, but dark matter relic density is always small, thus it can escape the direct detections. (iv) Light dark matter in the $h_2$- and $Z$-funnel annihilation channels with sufficient relic density can be covered by future LUX-ZEPLIN (LZ) 7-ton in spin-dependent detections.

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