论文标题
leptoquarks的有效现场理论
Effective Field Theory for Leptoquarks
论文作者
论文摘要
leptoquarks进入标准模型的几个扩展，以作为许多观察到的异常的解决方案。我们在软连续性有效理论框架中工作，详细分析了文献中最多的三个leptoquarks的衰减率，标量$ s_1 $和$ s_3 $以及vector $ u_1^μ$。使用重新归一化的方法，我们恢复了由新物理量表和电动量表之间的威尔逊系数演变而产生的大对数。我们还为某些特定的leptoquark模型中的有效理论中的威尔逊系数得出了树级匹配关系。
Leptoquarks enter in several extensions of the Standard Model as possible solutions to a number of observed anomalies. We work within the soft-collinear effective theory framework to present a detailed analysis of the decay rates of the three leptoquarks that appear the most in literature, the scalars $S_1$ and $S_3$ and the vector $U_1^μ$. Using renormalization group methods we resum the large logarithms arising from the evolution of the Wilson coefficients between the New Physics scale and the electroweak scale. We also derive the tree-level matching relations for the Wilson coefficients in the effective theory for some specific leptoquark models.
