论文标题
没有希格斯三胞胎的左右对称模型
Left-Right Symmetric Model without Higgs Triplets
论文作者
论文摘要
我们开发了一种基于量规组$ su（3）_c \ otimes su（2）_l \ otimes su（2）_r \ otimes u（1）_ {1）_ {b-l} $的最小左右对称模型，其中常规地使用了higgs的三胞胎，以替代higgs breaking by higgs by-higgs higgs higgs thiggs toobles。右撇子中微子$（ν_r$）的Majorana群众是通过涉及带电标量字段$η^+$的两循环图引起的。该设置被证明可以通过Seesaw机构在整个$ W_R^\ pm $质量的范围内通过SEESAW机制提供出色的适合，从TEV到肠道尺度。当$ w_r^\ pm $质量处于TEV量表时，$ν_r$ smoses属于MEV范围。我们在这种情况下分析了低能实验，早期宇宙宇宙学和Supernova 1987a的约束，并显示其一致性。我们还研究了相对轻的$η^+$标量的对撞机的含义，它通过其衰减到多勒普顿最终状态，并从LHC质量获得390 GEV的下限，在其高亮度运行中可以将其提高到555 GEV。
We develop a minimal left-right symmetric model based on the gauge group $SU(3)_C \otimes SU(2)_L \otimes SU(2)_R \otimes U(1)_{B-L}$ wherein the Higgs triplets conventionally employed for symmetry breaking are replaced by Higgs doublets. Majorana masses for the right-handed neutrinos $(ν_R$) are induced via two-loop diagrams involving a charged scalar field $η^+$. This setup is shown to provide excellent fits to neutrino oscillation data via the seesaw mechanism for the entire range of the $W_R^\pm$ mass, from TeV to the GUT scale. When the $W_R^\pm$ mass is at the TeV scale, the $ν_R$ masses turn out to be in the MeV range. We analyze constraints from low energy experiments, early universe cosmology and from supernova 1987a on such a scenario and show its consistency. We also study collider implications of a relatively light $η^+$ scalar through its decay into multi-lepton final states and derive a lower limit of 390 GeV on its mass from the LHC, which can be improved to 555 GeV in its high luminosity run.
