论文标题
中微子特异性旋转-3/2暗物质
Neutrino specific spin-3/2 dark matter
论文作者
论文摘要
在本文中，我们将自旋 - $ \ frac {3} {2} $暗物质（DM）粒子与中微子耦合为可行的候选者，以通过热冷冻输出机制产生观察到的DM遗物密度。 DM与中微子的耦合首先在最通用的六个有效田间理论框架中被视为。然后，我们考虑文献中讨论的两个特定的中微子 - 属性模型。在第一个模型的DM夫妇中，通过由无菌伪dirac巨大中微子产生的混合和我们认为的第二个模型是由无菌伪dirac的混合而产生的。对于每个模型，我们探讨了生成观察到的遗物密度所需的参数空间。在遗物密度计算的背景下，考虑了对这些模型参数以及现有宇宙学和天体物理界限的限制。
In this paper we consider a spin-$\frac{3}{2}$ dark matter (DM) particle coupled to neutrinos as a viable candidate to produce the observed DM relic density through the thermal freeze-out mechanism. The couplings of DM to neutrinos is considered first in a most general dimension six effective field theory framework. We then consider two specific neutrino-portal models discussed in the literature. In the first model DM couples to the standard model neutrinos through mixing generated by a sterile pseudo-Dirac massive neutrino and the second model we consider is the widely studied $U(1)_{L_μ- L_τ}$ gauge symmetric model. For each of these models we explore the parameter space required to generate the observed relic density. The constraints on the parameters of these models from the existing and proposed neutrino experiments as well as from existing cosmological and astrophysical bounds are considered in the context of the relic density calculations.
