论文标题
$ν$ electroweak baryogeneseration
$ν$ Electroweak Baryogenesis
论文作者
论文摘要
我们调查了成功进行电静电eake生成所需的CP违规行为是否可以由中微子Yukawa耦合来提出。特别是，我们考虑了具有相当大的Yukawas的Electroweak量表SEESAW实现，其中新的Neutrino Singlets形成（Pseudo） - dirac对，如线性或逆Seesaw变体中。我们发现获得的重子不对称在很大程度上取决于中微子质量在气泡壁中的变化。此外，我们还发现，风味效应严重影响获得的最终不对称性，并且考虑到它们，可以在参数空间的某些区域获得观察到的值。这种CP违规的来源自然避免了电偶极矩的强大限制，并将宇宙的重子不对称的起源与中微块的基本机制联系起来。有趣的是，活性和重中微子的混合需要很大，并且可以在LHC或将来的对撞机实验中进行探测。
We investigate if the CP violation necessary for successful electroweak baryogenesis may be sourced by the neutrino Yukawa couplings. In particular, we consider an electroweak scale Seesaw realization with sizable Yukawas where the new neutrino singlets form (pseudo)-Dirac pairs, as in the linear or inverse Seesaw variants. We find that the baryon asymmetry obtained strongly depends on how the neutrino masses vary within the bubble walls. Moreover, we also find that flavour effects critically impact the final asymmetry obtained and that, taking them into account, the observed value may be obtained in some regions of the parameter space. This source of CP violation naturally avoids the strong constraints from electric dipole moments and links the origin of the baryon asymmetry of the Universe with the mechanism underlying neutrino masses. Interestingly, the mixing of the active and heavy neutrinos needs to be sizable and could be probed at the LHC or future collider experiments.
