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arXiv 1609.04825astro-ph.COhep-ph
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在暗物质自相互作用的有效理论中被太阳捕获的WIMP

WIMP capture by the Sun in the effective theory of dark matter self-interactions

Riccardo Catena, Axel Widmark

摘要:

在暗物质自相互作用的非相对论有效理论中,我们研究了太阳对WIMP暗物质的俘获。其目的是评估自相互作用对预期的中微子通量的影响,从湮灭的WIMP被困在太阳中的模型独立的方式。我们考虑所有的非相对论性伽利略不变的自相互作用算子,可以产生从交换的重粒子的自旋小于或等于1的WIMP的自旋等于0,1/2和1。我们表明,相互作用的运营商依赖于最线性的动量转移,WIMP诱导的中微子通量可以增强几个数量级相比,相同的流量在没有自相互作用。这是真的,即使是标准值的热平均湮灭截面。这一结论影响了对中微子望远镜目前和未来观测结果的分析。

英文摘要:

We study the capture of WIMP dark matter by the Sun in the non-relativistic effective theory of dark matter self-interactions. The aim is to assess the impact of self-interactions on the expected neutrino flux from the annihilation of WIMPs trapped in the Sun in a model independent manner. We consider all non-relativistic Galilean invariant self-interaction operators that can arise from the exchange of a heavy particle of spin less than or equal to 1 for WIMPs of spin equal to 0, 1/2 and 1. We show that for interaction operators depending at most linearly on the momentum transfer, the WIMP-induced neutrino flux can be enhanced by several orders of magnitude compared to the same flux in absence of self-interactions. This is true even for standard values of the thermally averaged annihilation cross-section. This conclusion impacts the analysis of present and future observations performed at neutrino telescopes.

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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