论文标题
除了违反Lepton风味的标准模型之外
Beyond the Standard Model with Lepton Flavor Universality Violation
论文作者
论文摘要
近年来，超出标准模型（SM）以外的物理学的令人兴奋的（间接）提示。特别是，半左右$ b $衰减显示出与SM预测的偏差，由于比率$ r（k^{（*）}）$和$ r（d^{（*）} $）$显然与Lepton Floation Flastic Forcencely Intripational（LFUV）有关。然而，{我们指出}越来越多的异常来接受lfuv的解释：妈妈的异常磁矩，Cabibbo角度异常，CMS测量非谐振DI-ELECTRON的测量，$ B \ b \ b \ d^******\ ell el e el e el e e el e el e e el e el e el eeld和lepton的差异。在这封信中，我们讨论了这些异常的实验和理论状态，{比较它们的优势和弱点}，并检查{和合成}如何通过新的粒子和相互作用来解释它们的SM可能扩展。即使并非所有异常情况都可能在将来得到证实，但在LFUV方面，这种异常的统一观点显着加强了它们的相关性，这对于为未来的煤矿构建令人信服的物理案例至关重要。
In recent years, exciting (indirect) hints for physics beyond the Standard Model (SM) have been accumulated. In particular, semi-leptonic $B$ decays show deviations from the SM predictions, which, due to the ratios $R(K^{(*)})$ and $R(D^{(*)})$ are obviously related to lepton flavour universality violation (LFUV). However, {we point out} there are more anomalies which admit an interpretation in terms of LFUV: The anomalous magnetic moment of the muon, the Cabibbo angle anomaly, the CMS measurements of non-resonant di-electrons, the difference of the forward-backward asymmetry in $B\to D^*\ellν$ and leptonic tau decays. In this letter we discuss the experimental and theoretical status of these anomalies, {compare their strength and weaknesses} and examine {and synthesize} how they can be explained in terms of possible extensions of the SM by new particles and interactions. Even though not all anomalies might be confirmed in the future, this unified view of the anomalies in terms of LFUV significantly strengthens their relevance, which is crucial in order to construct a convincing physics case for future colliders.
