论文标题
在CMS，Atlas和Mathusla的右手中微子的流离失所的衰减
Boosted displaced decay of right-handed neutrinos at CMS, ATLAS and MATHUSLA
论文作者
论文摘要
我们研究了与$ b-l $仪表对称性相关的I型SEESAW机构中增强的流离失所签名。此类事件来自右撇子中微子的衰败，具体取决于其Yukawa的耦合和群众。考虑两种情况：（a）三个退化的右撇子中微子，其Yukawa耦合是从观察到的中微子质量和混合中重建的； （b）只有一个将中微子质量产生与观测中微子质量产生及其耦合的一个右手中微子，因此可以任意地进行基于毕达斯的模拟，以确定$ b-l $ gouge玻色子质量的参数范围通过移位的签名为14、27和100 TEV的质量能量。我们还详细介绍了增强作用如何增强流离失所的衰减长度，尤其是对于纵向的衰减长度，并阻碍了中微子主要的探测。
We investigate boosted displaced signatures in the Type-I seesaw mechanism associated with the $B-L$ gauge symmetry. Such events arise from decays of right-handed neutrinos depending on their Yukawa couplings and masses. Considering two scenarios: (a) three degenerate right-handed neutrinos whose Yukawa couplings are reconstructed from the observed neutrino masses and mixing; (b) only one right-handed neutrino which decouples from the observed neutrino mass generation and thus its coupling can be arbitrarily small, a detailed PYTHIA based simulation is performed to determine the parameter regions of the $B-L$ gauge boson mass, the neutrino Yukawa couplings, and the right-handed neutrino mass sensitive to CMS, ATLAS, proposed FCC-hh detector and MATHUSLA at the centre of mass energies of 14, 27 and 100 TeV via displaced signatures. We also show in detail how the boost effect enhances the displaced decay lengths, especially for the longitudinal ones, and hinders the probe of Majorana nature of neutrinos.
