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arXiv 0912.4510hep-phastro-ph.CO
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从Pamela到CDMS和返回

From Pamela to CDMS and Back

Qing-Hong Cao, Ian Low, Gabe Shaughnessy

摘要:

我们将CDMS合作组的最新结果作为一种暗示,即暗物质与核子的弹性散射截面在10^-7 pb附近。通过交叉对称性,这样的截面意味着暗物质湮灭为晕内的强子,导致反质子通量,如果包括一个大的助推因子来解释PAMELA过量的正电子分数,那么PAMELA合作的数据可能会限制反质子通量。作为一个例子,我们提出了一个模型无关的分析费米暗物质和研究的上界的升压因子使用PAMELA反质子通量。

英文摘要:

We take the recent result from the CDMS collaboration as a hint that the dark matter has an elastic scattering cross section with the nucleon in the vicinity of 10^-7 pb. By crossing symmetry such a cross section implies annihilation of dark matter into hadrons inside the halo, resulting in an anti-proton flux that could be constrained by data from the PAMELA collaboration if one includes a large boost factor necessary to explain the PAMELA excess in the positron fraction. As an illustration, we present a model-independent analysis for a fermionic dark matter and study the upper bound on the boost factor using the PAMELA anti-proton flux.

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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