论文标题
在$ t \ bar {t} z $和$ tzj $生产中提高新物理搜索
Boosting New Physics Searches in $t\bar{t}Z$ and $tZj$ Production with Angular Moments
论文作者
论文摘要
$ z $玻色子的角度时刻可以用作$ t \ bar t z $和$ t zj $流程的基础生产动力的分析仪。在本手稿中，我们在LHC的QCD中以QCD的前进和临近领先顺序得出了这些角矩。我们表明，考虑到标准模型有效的现场理论框架，这些可观测物作为有效探针超出标准模型效应。值得注意的是，我们观察到，这些探针向CP-ODD操作员揭示了盲方向，并在14 TEV LHC上提供了相当大的新物理敏感性，并具有3 Ab $^{ - 1} $的数据。
The angular moments for the $Z$ boson can be used as analyzers for the underlying production dynamics for the $t\bar t Z$ and $t Zj$ processes. In this manuscript, we derive these angular moments at leading and next-to-leading order in QCD at the LHC. We show that these observables work as efficient probes to beyond the Standard Model effects, considering the Standard Model Effective Field theory framework. Remarkably, we observe that these probes unveil blind directions to CP-odd operators, providing sizable new physics sensitivity at the 14 TeV LHC with 3 ab$^{-1}$ of data.
