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arXiv 0903.2986astro-ph.CO
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中微子望远镜对WIMP-核子散射截面的限制

Limits on the WIMP-nucleon scattering cross-section from neutrino telescopes

G. Wikström, J. Edsjö

摘要:

像Super-Kamiokande和IceCube这样的中微子望远镜已经开始探索太阳中WIMP湮灭产生的中微子通量。信号的不可观测性会对WIMP的性质产生限制。在这里,我们专注于中微子信号从WIMP湮灭在太阳和表明,在合理的假设下,从冰立方的信号的非观测提出了一个更严格的约束自旋相关的WIMP质子散射截面比目前的直接检测实验,如COUPP和KIMS。对于自旋无关的散射截面,IceCube和当前的直接检测实验(如XENON 10和CDMS)的限制也有类似的限制。在这里,我们将通过的假设和不确定性,从限制从太阳的μ子通量的限制转换到WIMP质子截面的限制,并提出我们的结果作为易于使用的转换因子。

英文摘要:

Neutrino-telescopes like Super-Kamiokande and IceCube have started to explore the neutrino fluxes from WIMP annihilations in the Sun. The non-observation of a signal can put constraints on the WIMP properties. We here focus on the neutrino signal from WIMP annihilation in the Sun and show that under reasonable assumptions, the non-observation of a signal from IceCube puts a much tighter constraint on the spin-dependent WIMP-proton scattering cross-section than current direct detection experiments like COUPP and KIMS. For the spin-independent scattering cross-section, the limits from IceCube and current direct detection experiments like XENON10 and CDMS place similar constraints. We here go through the assumptions being made and the uncertainties that arise in converting from limits on the muon flux from the Sun to limits on the WIMP-proton cross-section, and present our results as easy to use conversion factors.

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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