根据CDMS结果解释太阳暗物质在Super-Kamiokande诱导的μ子的边界
Interpreting the bounds on Solar Dark Matter induced muons at Super-Kamiokande in the light of CDMS results
摘要:
利用CDMS实验中观测到的两个信号事件,通过对CDMS II合作的分析,讨论了最近对暗物质-核子弹性散射截面的限制。在这些限制下,我们试图解释由太阳中产生的中微子引起的上行μ子的检测率的超神冈(SK)界限,这些中微子来自太阳核心捕获的暗物质(WIMPs)的湮灭产物的衰变。在SK使用CDMS边界的不同湮灭通道的上行μ子的计算速率被发现是低于预测的上限,这样的上行μ子率在SK的订单。因此,存在的空间,用于解释SK边界的CDMS限制的计算速率的增强(提升)。预计该特征将代表具有当前CDMS限值的PAMELA数据。我们还显示了这种可能的增强因子(升压)对WIMP质量不同的WIMP湮没通道的依赖性。
英文摘要:
We consider the recent limits on dark matter - nucleon elastic scattering cross section from the analysis of CDMS II collaboration using the two signal events observed in CDMS experiment. With these limits we try to interpret the Super-Kamiokande (SK) bounds on the detection rates of up-going muons induced by the neutrinos that are produced in the sun from the decay of annihilation products of dark matter (WIMPs) captured in the solar core. Calculated rates of up-going muons for different annihilation channels at SK using CDMS bounds are found to be orders below the predicted upper limits of such up-going muon rates at SK. Thus there exists room for enhancement (boost) of the calculated rates using CDMS limits for interpreting SK bounds. Such a feature is expected to represent the PAMELA data with the current CDMS limits. We also show the dependence of such a possible enhancement factor (boost) on WIMP mass for different WIMP annihilation channels.
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