Direct C P violation in charmless three-body decays of B ± mesons
Direct C P violation in charmless three-body decays of B ± mesons
复制标题
B±介子无魅力三体衰变中的直接 C P 破坏
DOI：
10.1103/physrevd.108.012008
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发表时间：
2023
影响因子：
5
通讯作者：
Aaij R
中科院分区：
文献类型：
--
作者：
Aaij R
利用LHCb探测器收集的质子-质子碰撞数据，测量了介子无粲三体衰变的不对称性。证实了先前所讨论的衰变不对称性，在和衰变中观察到了大于5个标准差的不对称性，而衰变的不对称性被证实与零相容。这些不对称性的分布也研究了作为一个功能的三体相空间，并建议从再散射和共振干涉过程的贡献。一个迹象表明存在的衰变在这两个衰变观察，因为违反涉及这些幅度。
Measurements ofasymmetries in charmless three-body decays ofmesons are reported using proton-proton collision data collected by the LHCb detector, corresponding to an integrated luminosity of. The previously observedasymmetry indecays is confirmed, andasymmetries are observed with a significance of more than five standard deviations in theanddecays, while theasymmetry ofdecays is confirmed to be compatible with zero. The distributions of these asymmetries are also studied as a function of the three-body phase space and suggest contributions from rescattering and resonance interference processes. An indication of the presence of the decaysin bothanddecays is observed, as isviolation involving these amplitudes.