标题： 探索SMEFT及之外的阿贝尔-非阿贝尔运动混合 显示英文标题

标题： Exploring Abelian-Non-Abelian Kinetic Mixing in SMEFT and Beyond

摘要： 我们探索了一种新颖的情景，在标准模型有效场理论（SMEFT）及其包含一个实三重态标量场的扩展框架下涉及阿贝尔-非阿贝尔动能混合。 在SMEFT中，这种混合仅由涉及标准模型希格斯二重态的六维算符产生，而实三重态标量场引入了一个额外的五维算符。 我们推导了电弱规范玻色子性质的修改，并使用电弱精确数据施加约束。 在SMEFT中，我们发现LEP-I的$Z$极点数据对动能混合参数施加了严格的约束，要求其小于$O$($10^{-4}$)，这对应于约10 TeV的新物理尺度。 在SMEFT+三重态情景中，可以通过显著的三重态真空期望值显著放松约束，同时在精细调整的参数空间中保持守恒对称性。 未来来自环形电子正电子对撞机的测量可能将动能混合参数探测到小一个数量级。 显示英文摘要

摘要： We explore a novel scenario involving Abelian-non-Abelian kinetic mixing within the framework of the Standard Model Effective Field Theory (SMEFT) and its extension with a real triplet scalar field. In SMEFT, this mixing arises exclusively from a dimension-6 operator involving the Standard Model Higgs doublet, while the real triplet scalar field introduces an additional dimension-5 operator. We derive the modifications to electroweak gauge boson properties and impose constraints using electroweak precision data. In SMEFT, we find that $Z$ pole data at LEP-I imposes a stringent constraint on the kinetic mixing parameter, requiring it to be less than $O$($10^{-4}$), which corresponds to a new physics scale of about 10 TeV. In the SMEFT+triplet scenario, the constraint can be significantly relaxed with a sizeable triplet vacuum expectation value while preserving custodial symmetry in a finely-tuned parameter space. Future measurements from the Circular Electron Positron Collider could probe the kinetic mixing parameter down to an order of magnitude smaller.