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arXiv 0907.0030hep-ph
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SUSY-QCD对中性伴子暗物质湮灭的影响

SUSY-QCD effects on neutralino dark matter annihilation beyond scalar or gaugino mass unification

Bjorn Herrmann, Michael Klasen, Karol Kovarik

摘要:

我们详细描述了我们的计算的全超对称(SUSY)QCD校正中性伴子湮灭成重夸克和扩展我们的数值分析所产生的暗物质遗迹密度的方案没有标量或高根质量统一。在这些情况下,末态通常由顶夸克组成,湮灭通过Z^0玻色子或标量顶夸克交换进行。的影响的修正再次被证明是相当大的,所以他们必须考虑到系统的全球分析的超对称性参数空间。

英文摘要:

We describe in detail our calculation of the full supersymmetric (SUSY) QCD corrections to neutralino annihilation into heavy quarks and extend our numerical analysis of the resulting dark matter relic density to scenarios without scalar or gaugino mass unification. In these scenarios, the final state is often composed of top quarks and the annihilation proceeds through Z^0-boson or scalar top-quark exchanges. The impact of the corrections is again shown to be sizable, so that they must be taken into account systematically in global analyses of the supersymmetry parameter space.

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