Altmannshofer Wolfgang, Stangl Peter
Department of Physics and Santa Cruz Institute for Particle Physics, University of California, Santa Cruz, 1156 High Street, Santa Cruz, CA 95064 USA.
Albert Einstein Center for Fundamental Physics, Institute for Theoretical Physics, University of Bern, Sidlerstrasse 5, 3012 Bern, Switzerland.
Eur Phys J C Part Fields. 2021;81(10):952. doi: 10.1140/epjc/s10052-021-09725-1. Epub 2021 Oct 28.
The anomalies in rare decays endure. We present results of an updated global analysis that takes into account the latest experimental input - in particular the recent results on and BR - and that qualitatively improves the treatment of theory uncertainties. Fit results are presented for the Wilson coefficients of four-fermion contact interactions. We find that muon specific Wilson coefficients or continue to give an excellent description of the data. If only theoretically clean observables are considered, muon specific or improve over the Standard Model by and , respectively. In various new physics scenarios we provide predictions for lepton flavor universality observables and CP asymmetries that can be tested with more data. We update our previous combination of ATLAS, CMS, and LHCb data on BR and BR taking into account the full two-dimensional non-Gaussian experimental likelihoods.
稀有衰变中的异常现象依然存在。我们给出了一项更新的全局分析结果，该分析考虑了最新的实验输入——特别是关于[具体内容未给出]和分支比（BR）的最新结果——并且在定性上改进了理论不确定性的处理。给出了四费米子接触相互作用的威尔逊系数的拟合结果。我们发现，特定于μ子的威尔逊系数[具体系数未给出]或[具体系数未给出]继续能很好地描述数据。如果仅考虑理论上纯净的可观测量，特定于μ子的[具体系数未给出]或[具体系数未给出]分别比标准模型改进了[具体数值未给出]和[具体数值未给出]。在各种新物理情景中，我们给出了轻子味普适性可观测量和CP不对称性的预测，这些可通过更多数据进行检验。我们考虑了完整的二维非高斯实验似然性，更新了之前关于ATLAS、CMS和LHCb在[具体内容未给出]分支比和[具体内容未给出]分支比的数据组合。
