Predictions for the direct detection of neutralino dark matter in the NMSSM

被引：0
|
作者：
Cerdeño, DG [1 ]
机构：
[1] Univ Durham, Inst Particle Phys Phenomenol, Durham DH1 3LE, England
来源：
Particles, Strings, and Cosmology | 2005年 / 805卷
关键词：
dark matter; supersymmetry phenomenology;
D O I：
暂无
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：
The direct detection of neutralino dark matter is analysed in the framework of the Next-to-Minimal Supersymmetric Standard Model. After performing a detailed analysis of the parameter space, taking into account all the available constraints from LEP, the neutralino-nucleon cross section is computed. Sizable values for the detection cross section, within the reach of dark matter detectors, are attainable in this scenario, due to the exchange of very light Higgses with m(h1)(0) <= 70 GeV. These have a significant singlet composition, thus escaping detection and being in agreement with accelerator data. The lightest neutralino exhibits a large singlino-Higgsino composition, and a mass in the range 50 <= m (0)((x) over bar1) 100 GeV.
引用
收藏
页码：415 / 418
页数：4
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