论文标题
超越倾斜的贡献：$δ$ r和带标量leptoquarks的型号的w-mass
Beyond oblique contributions: $Δ$r and W-mass in models with scalar leptoquarks
论文作者
论文摘要
我们研究了标准模型仪表对称性允许的五个标量leptoquarks（LQ）对MUON衰减的主要非宇宙贡献。通过使用通用的计算框架，我们将新物理（NP）一环校正分离在可观察到的$ΔR$上，并探索与$ W $ boson质量的连接。我们重点介绍了非全世界术语的作用，考虑到$ su（2）$ doublet和Triplet LQ，这是一种完全退化的情况，从而取消/调节了倾斜参数S，T和U的效果。我们确定了简单的公式，这些公式表现出通过引入额外的Yukawa术语产生的主要非普遍行为，并面对$ M_W $中的当前张力以及预计的FCC-EE精度。
We study the dominant non-universal contributions to muon decay for the five scalar leptoquarks (LQs) allowed by the Standard Model gauge symmetries. By using a common computational framework, we isolate the new-Physics (NP) one-loop corrections over the observable $Δr$ and explore the connection with the $W$ boson mass. We highlight the role of non-universal terms considering, for the $SU(2)$ doublet and triplet LQs, a completely degenerate scenario, thus cancelling/moderating the effects of the oblique parameters S,T and U . We determine simple formulas that exhibit the leading non-universal behaviour generated by the introduction of extra Yukawa terms, and confront them against a present tension in $M_W$ and the projected FCC-ee accuracy.
