论文标题
无异常手性$ u（1）_ {d} $及其术
Anomaly-free chiral $U(1)_{D}$ and its scotogenic implication
论文作者
论文摘要
我们假设一个深色的$ u_ {d} $对称隐藏扇区，并探索其可能的内容，以便通过Scotogenic机制生成中微子质量和暗物质。隐藏部门被认为是类似于标准模型的，即隐藏费米子的电荷分配是手性的，无异常。此外，$ u_ {d} $被唯一的higgs singlet弄坏了，该单元还为所有隐藏的费米子生成质量，因此，收费分配受到额外的限制。我们通过计算机程序搜索满足所有这些条件的电荷分配，并分别确定了Majorana中微子和Dirac Neutminos的最小Scotogenic模型，从而涉及最小的Messenger标量。简要讨论了这些最小模型的粒子谱，耦合和现象学。 DM被发现多组分，并且始终包含Dirac fermionic物种。
We assume a dark $U_{D}$ symmetric hidden sector and explore its possible content such that neutrino mass and Dark Matter are generated through the scotogenic mechanism. The hidden sector is considered analogue to the Standard Model, namely the charge assignment of hidden fermions is chiral and anomaly-free. Moreover, $U_{D}$ is assumed broken by an only Higgs singlet that also generates masses to all hidden fermions, therefore the charge assignment is subjected to additional restriction. We search by computer program for charge assignments satisfying all these conditions, and identify the resulting minimal scotogenic models for Majorana neutrinos and Dirac neutrinos respectively in the sense of minimal number of messenger scalar involved. Particle spectrum, couplings, and phenomenologies of these minimal models are briefly discussed. DM is found multicomponent and always contains Dirac fermionic species.
