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arXiv 0911.4451hep-ph
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具有非普适Higgs质量的MSSM模型中的中微子暗物质

Neutralino Dark Matter in MSSM Models with Non-Universal Higgs Masses

Pearl Sandick

摘要:

我们考虑最小超对称标准模型(MSSM)与不同数量的非普适性的软超对称性破缺贡献的希格斯标量质量。除了受约束的MSSM(CMSSM),其中这些是普遍的软超临界破坏贡献的夸克和slepton质量在输入的大统一体尺度,我们考虑的情况下,希格斯质量是非普遍的相同的金额(NUHM 1),和场景中,他们是独立的非普遍的(NUHM 2)。由于最轻的中性伴子是暗物质的候选者,我们要求中性伴子的残余密度不与WMAP和其他人的测量相冲突,并检查参数空间的可行区域。在这些情况下,中性伴子暗物质通过弹性散射直接检测的前景进行了讨论。

英文摘要:

We consider the Minimal Supersymmetric Standard Model (MSSM) with varying amounts of non-universality in the soft supersymmetry-breaking contributions to the Higgs scalar masses. In addition to the constrained MSSM (CMSSM) in which these are universal with the soft supersymmetry-breaking contributions to the squark and slepton masses at the input GUT scale, we consider scenarios in which both the Higgs masses are non-universal by the same amount (NUHM1), and scenarios in which they are independently non-universal (NUHM2). As the lightest neutralino is a dark matter candidate, we demand that the relic density of neutralinos not be in conflict with measurements by WMAP and others, and examine the viable regions of parameter space. Prospects for direct detection of neutralino dark matter via elastic scattering in these scenarios are discussed.

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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