论文标题
爱因斯坦 - 卡丹门户网站到暗物质
Einstein-Cartan Portal to Dark Matter
论文作者
论文摘要
众所周知，由于Utiyama和kibble的作品可以通过计量庞加莱组来获得重力，从而使重力与标准模型场相同。所得理论 - 爱因斯坦 - 卡丹的重力 - 不可避免地包含四个弗术和标量 - 弗米相互作用，这些相互作用源自与自由度自由度相关的扭转。我们表明，这些相互作用导致了在早期宇宙中产生单线费米子的新型机制。这些费米子可以发挥暗物质颗粒的作用。该机制在各种暗物质粒子质量中都可以操作：从几个keV到$ \ sim 10^8〜 $ gev。我们讨论了凯夫规模的暗物质的潜在观察后果，尤其是右手中微子。我们得出的结论是，确定原始暗物质动量分布可能能够阐明重力引起的费米子相互作用。
It is well-known since the works of Utiyama and Kibble that the gravitational force can be obtained by gauging the Poincaré group, which puts gravity on the same footing as the Standard Model fields. The resulting theory -- Einstein-Cartan gravity -- inevitably contains four-fermion and scalar-fermion interactions that originate from torsion associated with spin degrees of freedom. We show that these interactions lead to a novel mechanism for producing singlet fermions in the Early Universe. These fermions can play the role of dark matter particles. The mechanism is operative in a large range of dark matter particle masses: from a few keV up to $\sim 10^8~$GeV. We discuss potential observational consequences of keV-scale dark matter produced this way, in particular for right-handed neutrinos. We conclude that a determination of the primordial dark matter momentum distribution might be able to shed light on the gravity-induced fermionic interactions.
