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arXiv 0901.1334hep-ph
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暗物质:轻子联系

Dark Matter: The Leptonic Connection

Qing-Hong Cao, Ernest Ma, Gabe Shaughnessy

摘要:

最近通过PAMELA和ATIC实验观测到的高能正电子和电子可能是暗物质湮灭为轻子而不是夸克的一个迹象。几年前,在两种不同的辐射中微子质量模型中,已经预见到了轻子之间的这种联系。我们在这里讨论的是(neta ^0- l eta^+)chi和l^c zeta^- chi^c的一般相互作用,它们允许这种情况发生,其中chi和/或chi^c是费米子暗物质的候选者。我们特别指出,在这个框架内,chi chi到l^+ l^- gamma对正电子和gamma射线信号的重要性。

英文摘要:

Recent observatons of high-energy positrons and electrons by the PAMELA and ATIC experiments may be an indication of the annihilation of dark matter into leptons and not quarks. This leptonic connection was foreseen already some years ago in two different models of radiative neutrino mass. We discuss here the generic interactions (nu eta^0 - l eta^+) chi and l^c zeta^- chi^c which allow this to happen, where chi and/or chi^c are fermionic dark-matter candidates. We point out in particular the importance of chi chi to l^+ l^- gamma to both positron and gamma-ray signals within this framework.

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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