论文标题
II型Dirac Seesaw门户网站到镜像部门：连接中微子质量和解决强大CP问题的解决方案
The Type II Dirac Seesaw Portal to the mirror sector: Connecting neutrino masses and a solution to the strong CP problem
论文作者
论文摘要
我们提出了用于参数性小dirac中微子质量的II型Seesaw机制的版本。我们的模型从$ \ text {su}（2）_ \ text {l} \ otimes \ text {su}（2）'\ otimes \ otimes \ text {u}（1）_ \ text {x} $量表扩展涉及涉及Mirror Fermions的标准模型的标准模型。具有很小真空期望值的bidboulet标量与镜像相对的lept子连接起来，我们可以用右手中微子识别镜像中微子。与传统的II型Seesaw类似，我们的粒子频谱具有单一和双电荷标量。强大的CP问题通过两个部门之间的离散交换对称性解决，迫使Quarks和Mirror Quarks对强CP阶段的贡献相互取消。我们讨论低能现象学，评论这种情况的宇宙学含义，并指出了如何实现成功的Dirac瘦素发生。
We present a version of the Type II Seesaw mechanism for parametrically small Dirac neutrino masses. Our model starts from an $\text{SU}(2)_\text{L} \otimes \text{SU}(2)'\otimes \text{U}(1)_\text{X}$ gauge extension of the Standard Model involving a sector of mirror fermions. A bidoublet scalar with a very small vacuum expectation value connects the SM leptons with their mirror counterparts and we can identify the mirror neutrino with the right-handed neutrino. Similar to the conventional Type II Seesaw, our particle spectrum features singly- and doubly-charged scalars. The strong CP problem is solved by a discrete exchange symmetry between the two sectors that forces the contributions of quarks and mirror quarks to the strong CP phase to cancel each other. We discuss the low-energy phenomenology, comment on the cosmological implications of this scenario and indicate how to realize successful Dirac leptogenesis.
