论文标题
$ u（1）_d $共振的瘦生成
Leptogenesis from a $U(1)_D$ resonance
论文作者
论文摘要
我们提出了一种新的机制，可以通过黑暗$ u（1）_d $ gauge boson $ z_d $的Breit-wigner共振实现瘦素发生，该$ z_d $，该$ z_d $介导了Lepton数字，违反了Scotogenic模型的上下文，违反了暗物质（DM）的上下文。这些过程发生在平衡中，而DM冻结了最近产生了观察到的丰度。 The CP violation required for leptogenesis can be achieved by the interference between tree-level t-channel scattering of DM and the subsequent 1-loop mediated by $Z_D$, which arises due to the unremovable imaginary part of either the $Z_D$ propagator coming from its self-energy correction or the 1-loop giving rise to the effective coupling of $Z_D\barνν$.
We propose a novel mechanism to realize leptogenesis through the Breit-Wigner resonance of a dark $U(1)_D$ gauge boson $Z_D$, which mediates lepton number violating annihilations of dark matter (DM) in the context of the scotogenic model with a $U(1)_D$. The processes occur out of equilibrium and the DM freezes out lately giving rise to the observed abundance. The CP violation required for leptogenesis can be achieved by the interference between tree-level t-channel scattering of DM and the subsequent 1-loop mediated by $Z_D$, which arises due to the unremovable imaginary part of either the $Z_D$ propagator coming from its self-energy correction or the 1-loop giving rise to the effective coupling of $Z_D\barνν$.
