Search for C P violation and observation of P violation in ? b 0 ? p p - p + p - decays
Search for C P violation and observation of P violation in ? b 0 ? p p - p + p - decays
复制标题
搜索 C P 违规并观察 P 违规？
DOI：
10.1103/physrevd.102.051101
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发表时间：
2020
影响因子：
5
通讯作者：
Aaij R
中科院分区：
文献类型：
--
作者：
Aaij R
使用与在 7、8 和 13 TeV 质心能量处收集的碰撞的积分光度相对应的 LHCb 数据来搜索衰变中的破坏。该分析同时使用三重积不对称性和未分档能量测试方法。不对称性的最高显着性是三重积不对称性的 2.9 个标准差，以及能量测试方法的 3.0 个标准差。一旦考虑了全局值，所有结果都与无违规一致。对于三重积不对称方法，观察到宇称不守恒的显着性为 5.5 个标准偏差，对于能量测试方法，观察到显着性为 5.3 个标准偏差。报告的偏差在相空间区域中给出。
A search forviolation in thedecay is performed using LHCb data corresponding to an integrated luminosity ofcollected incollisions at center-of-mass energies of 7, 8 and 13 TeV. The analysis uses both triple product asymmetries and the unbinned energy test method. The highest significances ofasymmetry are 2.9 standard deviations from triple product asymmetries and 3.0 standard deviations for the energy test method. Once the global-value is considered, all results are consistent with noviolation. Parity violation is observed at a significance of 5.5 standard deviations for the triple product asymmetry method and 5.3 standard deviations for the energy test method. The reported deviations are given in regions of phase space.