Dark matter in the CP-violating NMSSM

被引：3

作者：

Ahmed, Waqas ^{[1
]}

Goodsell, Mark ^{[2
,3
]}

Munir, Shoaib ^{[4
]}

机构：

[1] Hubei Polytech Univ, Sch Math & Phys, Huangshi 435003, Hubei, Peoples R China

[2] Sorbonne Univ, Lab Phys Theor & Hautes Energies LPTHE, UMR 7589, 4 Pl Jussieu, F-75252 Paris 05, France

[3] CNRS, 4 Pl Jussieu, F-75252 Paris 05, France

[4] Univ Rwanda, East African Inst Fundamental Res ICTP EAIFR, Kigali, Rwanda

来源：

EUROPEAN PHYSICAL JOURNAL C | 2022年 / 82卷 / 06期

关键词：

MISSING TRANSVERSE-MOMENTUM; MSSM HIGGS SECTOR; LOOP CORRECTIONS; EDM CONSTRAINTS; PAIR PRODUCTION; STANDARD MODEL; PP COLLISIONS; ROOT-S=13 TEV; RELIC DENSITY; FINAL-STATES;

D O I：

10.1140/epjc/s10052-022-10449-z

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

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 kappa. 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 kappa typically yields a O(10) GeV lightest neutralino with a dominant singlino component. In such a scenario, the phase of kappa, 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.

引用

页数：16

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