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arXiv 0909.1529astro-ph.HEhep-ph
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用费米LAT数据研究暗物质

Shedding Light on Dark Matter with Fermi LAT Data on Gamma Rays

Leszek Roszkowski, Yue-Lin Sming Tsai

摘要:

费米伽玛射线空间望远镜的LAT仪器收集了银河系中心地区的弥散伽玛射线数据。在本文中,我们认为,它可能能够提供一个明确的证据起源,除了已知的天体物理来源,从暗物质湮灭的晕,独立的质量和其他属性的暗物质粒子。我们还表明,最近发布的高精度数据中纬度地区已经提供了一个上限,虽然仍然是一个薄弱的,作为一个函数的暗物质的质量假设是一个稳定的中性伴子的最小超对称性的暗物质密度分布的尖。

英文摘要:

The diffuse Galactic gamma-ray data from the region of the Galactic Center has been collected by the LAT instrument on the Fermi Gamma-Ray Space Telescope. In this paper we argue that it may be able to provide an unambiguous evidence of originating, in addition to known astrophysical sources, from dark matter annihilations in the halo, independently of the mass and other properties of the dark matter particle. We also show that the recently released high precision data from mid-latitudes is already providing an upper bound, albeit still a weak one, on the cuspiness of the dark matter density profile as a function of the mass of the dark matter assumed to be a stable neutralino of minimal supersymmetry.

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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