论文标题
中微子质量\＆暗物质的天然Scotogent模型
A Natural Scotogenic Model for Neutrino Mass \& Dark Matter
论文作者
论文摘要
在这封信中，我们提出了Scotogenic模型的扩展，其中Singlet MajoraNA粒子可以是暗物质（DM），而无需高度抑制的标量$ O（10^{ - 10}）$。为此，SM用三个单弦major鼠费米子，一个惰性标量双打和两个（一个复杂和真实的）单元标量，带有全球$ z_ {4} $对称性，它们被自发地分成$ z_ {2} $，比electereak the electeak the electeak the Complect singlet singlet scalles veev scaleak feeeptial singlet siclelet scallales均高。在此设置中，通过取消中微子质量的较小质量是通过在scotogenic的三个图之间取消来实现的，这是一个可行的DM候选者，可在较大的质量范围内可行。现象学比最小的苏氏菌模型更丰富。
In this letter, we propose an extension of the scotogenic model where singlet Majorana particle can be dark matter (DM) without the need of a highly suppressed scalar coupling of the order $O(10^{-10})$. For that, the SM is extended with three singlet Majorana fermions, an inert scalar doublet, and two (a complex and a real) singlet scalars, with a global $Z_{4}$ symmetry that is spontaneously broken into $Z_{2}$ at a scale higher than the electroweak one by the vev of the complex singlet scalar. In this setup, the smallness of neutrino mass is achieved via the cancellation between three diagrams a la scotogenic, a DM candidate that is viable for a large mass range; and the phenomenology is richer than the minimal scotogenic model.
