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arXiv 1202.5828hep-phastro-ph.CO
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左右对称性下的暗物质费米子

Dark-Matter Fermion from Left-Right Symmetry

Ernest Ma

摘要:

在左右对称的非常规实现中,对应于右手扇区中左手中微子nu_L(具有SU(2)_L相互作用)的粒子,称之为n_R(具有SU(2)_R相互作用),不是它的狄拉克质量伙伴,而是另一种可能是暗物质候选者的粒子。与SU(2)_L扇区中的纤生平行,SU(2)_R扇区中也可能出现n_R的不对称产生。这种机制特别适用于1 ~ 10 keV量级的nR质量,即暖暗物质,这是一种可能的解释宇宙结构的新范式。

英文摘要:

In an unconventional realization of left-right symmetry, the particle corresponding to the left-handed neutrino nu_L (with SU(2)_L interactions) in the right-handed sector, call it n_R (with SU(2)_R interactions), is not its Dirac mass partner, but a different particle which may be a dark-matter candidate. In parallel to leptogenesis in the SU(2)_L sector, asymmetric production of n_R may occur in the SU(2)_R sector. This mechanism is especially suited for n_R mass of order 1 to 10 keV, i.e. warm dark matter, which is a possible new paradigm for explaining the structure of the Universe at all scales.

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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