CMSSM中的CBBN
CBBN in the CMSSM
摘要:
催化大爆炸核合成(CBBN)可以导致引力子暗物质中^6 Li的过量产生,在这种情况下,较轻的Stau是最轻的标准模型超伴子。基于对催化^6Li生成截面的最新结果的处理,我们在约束最小超对称标准模型(CMSSM)的框架内更新了所得的约束。我们面对我们的数值计算结果与最近推导的保守限制的高吉诺质量参数和再加热温度。
英文摘要:
Catalyzed big bang nucleosynthesis (CBBN) can lead to an overproduction of ^6Li in gravitino dark matter scenarios in which the lighter stau is the lightest Standard Model superpartner. Based on a treatment using the state-of-the-art result for the catalyzed ^6Li production cross section, we update the resulting constraint within the framework of the constrained minimal supersymmetric Standard Model (CMSSM). We confront our numerical findings with recently derived conservative limits on the gaugino mass parameter and the reheating temperature.
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