论文标题
可验证的类型II Seesaw和Dark Matter在一个测量的$ U（1）_ {B-L} $模型中
Verifiable type-II seesaw and dark matter in a gauged $U(1)_{B-L}$ model
论文作者
论文摘要
我们建议使用标准模型（SM）扩展的$ u（1）_ {1）_ {b-l} $，以同时解释光中微子质量和暗物质（DM）。中微子质量的产生是通过一种II型Seesaw机制发生的，其中一个标量三重态位于TEV尺度上，但具有较大的Dilepton耦合，该耦合铺平了一条探测该模型在凸起者的路径。 $ u（1）_ {b-l} $对称的测量值在类型II Seesaw框架中引入了$ B-L $ andmalies。因此，我们调用三个右手中微子$ν_{r_ {i}} $（i = 1,2,3），用$ b-l $费用-4，-4，+5来取消异常。我们进一步表明，在三个右手中微子中，最轻的是一个可行的DM候选者。 DM的稳定性可以归功于残留的$ Z_2 $对称性，根据该对称，右手中微子是奇怪的，而所有其他粒子都均为。然后，我们从观察到的DM丰度和直接检测实验的搜索中讨论模型参数的约束。
We propose a gauged $U(1)_{B-L}$ extension of the standard model (SM) to explain simultaneously the light neutrino masses and dark matter (DM). The generation of neutrino masses occurs through a variant of type-II seesaw mechanism in which one of the scalar triplets lies at the TeV scale yet have a large dilepton coupling, which paves a path for probing this model at colliders. The gauging of $U(1)_{B-L}$ symmetry in a type-II seesaw framework introduces $B-L$ anomalies. Therefore we invoke three right handed neutrinos $ν_{R_{i}}$(i=1,2,3) with $B-L$ charges -4,-4,+5 to cancel the anomalies. We further show that the lightest one among the three right handed neutrinos can be a viable DM candidate. The stability of DM can be owed to a remnant $Z_2$ symmetry under which the right handed neutrinos are odd while all other particles are even. We then discuss the constraints on the model parameters from observed DM abundance and the search at direct detection experiments.
