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arXiv 1007.0539hep-ph
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暗物质如何关心拓扑超弦

How dark matter cares about topological superstrings

Luis A. Anchordoqui

摘要:

具有三个边界的弦世界片的非平凡拓扑性质可以产生保持超对称性但破坏两个单位的R对称性的超势。这导致了四个点函数,允许两个中性伴子的s波湮灭成为规范玻色子。如果拓扑配分函数允许WMAP暗物质密度在低弦标度(M_s ~ 2 TeV)下饱和,那么湮灭成单色伽马射线的几率将比当前的H.E.S. S低2倍。测量来自银河系中心的伽马射线通量。因此,它可能在下一轮的伽马射线观测中被探测到。

英文摘要:

Non-trivial toplogical properties of string world-sheets with three boundaries can give rise to superpotentials which preserve supersymmetry but violate R-symmetry by two units. This results in four point functions which permit s-wave annihilation of two neutralinos into gauge bosons. If the topological partition function is such as to allow saturation of the WMAP dark matter density for low string scales (M_s ~ 2 TeV), the annihilation into monochromatic gamma rays is predicted to lie about a factor of 2 below the current H.E.S.S. measurement of gamma ray flux from the galactic center. Thus, it may be detectable in the next round of gamma ray observations.

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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