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arXiv 1003.4442hep-phastro-ph.COastro-ph.HE
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MSSM中提升Higgs区暗物质湮灭产生的宇宙射线中的正电子

Positrons in Cosmic Rays from Dark Matter Annihilations for Uplifted Higgs Regions in MSSM

Kenji Kadota, Katherine Freese, Paolo Gondolo

摘要:

我们指出,有区域的MSSM参数空间,成功地提供了一个暗物质(DM)湮没解释所观察到的正电子过剩(如PAMELA),同时仍然与所有其他数据集的协议。这样的区域(例如抬升的希格斯区域)可以通过CP奇希格斯通道通过Breit-Wigner共振实现增强的中性伴子DM湮灭为轻子。这样的区域可以给出适当的热遗迹DM丰度,DM湮灭产物与当前的反质子和伽马射线观测是兼容的。这种情况可以成功,而无需引入任何额外的自由度,超出MSSM中已经存在的自由度。

英文摘要:

We point out that there are regions in the MSSM parameter space which successfully provide a dark matter (DM) annihilation explanation for observed positron excess (e.g. PAMELA), while still remaining in agreement with all other data sets. Such regions (e.g. the uplifted Higgs region) can realize an enhanced neutralino DM annihilation dominantly into leptons via a Breit-Wigner resonance through the CP-odd Higgs channel. Such regions can give the proper thermal relic DM abundance, and the DM annihilation products are compatible with current antiproton and gamma ray observations. This scenario can succeed without introducing any additional degrees of freedom beyond those already in the MSSM.

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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