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arXiv 1502.02200hep-ph
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从轻子宇称导出暗物质宇称

Derivation of Dark Matter Parity from Lepton Parity

Ernest Ma

摘要:

它表明,在扩展的标准模型的夸克和轻子的加性轻子数$L$被打破了两个单位,使$Z_2$轻子宇称,即$(-1)^L$是偶数或奇数,保持完全保守,有可能是稳定的暗物质没有额外的对称性。这适用于许多现有的简单模型马约拉纳中微子质量与暗物质,包括一些辐射模型。几个著名的例子进行了讨论。这一新的见解导致中微子质量与暗物质的辐射II型跷跷板模型的建设,其中占主导地位的双电荷希格斯玻色子$ξ^{++}$衰变到$W^+W^+$,而不是预期的$l_i^+ l_j^+$轻子对为著名的树级模型。

英文摘要:

It is shown that in extensions of the standard model of quarks and leptons where additive lepton number $L$ is broken by two units, so that $Z_2$ lepton parity, i.e. $(-1)^L$ which is either even or odd, remains exactly conserved, there is the possibility of stable dark matter without additional symmetry. This applies to many existing simple models of Majorana neutrino mass with dark matter, including some radiative models. Several well-known examples are discussed. This new insight leads to the construction of a radiative Type II seesaw model of neutrino mass with dark matter where the dominant decay of the doubly charged Higgs boson $ξ^{++}$ is into $W^+W^+$ instead of the expected $l_i^+ l_j^+$ lepton pairs for the well-known tree-level model.

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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