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arXiv 1111.0008hep-ph
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弱尺度轻子生成、R对称性和位移的希格斯粒子

Weak Scale Leptogenesis, R-symmetry, and a Displaced Higgs

Keith Rehermann, Christopher M. Wells

摘要:

我们提出了一个超对称的轻子生成模型,其中右手中微子具有弱标度质量和O(10-2-10-3)Yukawa耦合。该模型在弱尺度下采用了R对称性,迫使中微子质量与引力子质量成正比。我们预测,最轻的右手中微子衰变为位移希格斯和中微子和NLSP是长寿的对撞机规模。如果右手中微子是在级联衰变中产生的,这些可能是大型强子对撞机的显著特征。

英文摘要:

We present a supersymmetric model of leptogenesis in which the right-handed neutrinos have weak scale masses and O(10-2-10-3) yukawa couplings. The model employs an R-symmetry at the weak scale that forces neutrino masses to be proportional to the gravitino mass. We predict that the lightest right-handed neutrino decays to a displaced Higgs and neutrino and that the NLSP is long-lived on collider scales. These could be striking signatures at the LHC if, for instance, the right-handed neutrino is produced in a cascade decay.

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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