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arXiv 0910.4513astro-ph.HE
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用IceCube间接寻找暗物质

The Indirect Search for Dark Matter with IceCube

Francis Halzen, Dan Hooper

摘要:

我们重新审视了冰立方和类似的大规模望远镜的前景,以检测中微子产生的弱相互作用的大质量暗物质粒子(WIMPs)在太阳中的湮灭。我们强调,问题的天体物理学是理解的;模型可以被观察到,或者,排除。在寻找与普通物质具有自旋无关相互作用的WIMP时,IceCube只有在WIMP质量足够大的情况下才能与直接检测实验竞争。对于自旋相关的相互作用,IceCube已经将自旋相关的WIMP截面的最佳限制提高了两个数量级。这在很大程度上是由于这样一个事实,即具有显着的自旋依赖耦合到质子的模型是最少的限制,同时,最有希望的,因为有效地捕获太阳中的WIMP。我们确定的模型中,暗物质粒子是超出任何计划的直接探测实验,而中微子望远镜的范围内。总之,我们发现,即使考虑到最近的直接探测结果,中微子望远镜有机会在寻找粒子暗物质方面发挥重要的补充作用。

英文摘要:

We revisit the prospects for IceCube and similar kilometer-scale telescopes to detect neutrinos produced by the annihilation of weakly interacting massive dark matter particles (WIMPs) in the Sun. We emphasize that the astrophysics of the problem is understood; models can be observed or, alternatively, ruled out. In searching for a WIMP with spin-independent interactions with ordinary matter, IceCube is only competitive with direct detection experiments if the WIMP mass is sufficiently large. For spin-dependent interactions IceCube already has improved the best limits on spin-dependent WIMP cross sections by two orders of magnitude. This is largely due to the fact that models with significant spin-dependent couplings to protons are the least constrained and, at the same time, the most promising because of the efficient capture of WIMPs in the Sun. We identify models where dark matter particles are beyond the reach of any planned direct detection experiments while being within reach of neutrino telescopes. In summary, we find that, even when contemplating recent direct detection results, neutrino telescopes have the opportunity to play an important as well as complementary role in the search for particle dark matter.

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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