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首页> 外文期刊>Progress of Theoretical Physics >Experimental constraints to rephasing-invariant CP, T and CPT violating parameters in the neutral kaon system
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Experimental constraints to rephasing-invariant CP, T and CPT violating parameters in the neutral kaon system

机译：中性kaon系统中重定不变CP，T和CPT违反参数的实验约束

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摘要

A phenomenological and comprehensive study is given of the (possible) violation of CP, T and CPT symmetries in the K-0-<(K)over bar (0)> system. Relevant decay amplitudes as well as mixing parameters are parametrized in a rephasing-invariant way, and formulae relevant to phenomenological analyses are derived, An attempt is made to derive constraints on these CP, T and/or CPT violating parameters from available experimental data. It is found, among other things, that the parameters which signal both CP and CPT violations are subject to large errors and at best only one or two orders smaller than those which signal both CP and ir violations, the latter being known to be of order 10(-3). Furthermore, it is pointed out that those parameters which signal both T and CPT violations but not CP violation are not yet well constrained experimentally.
机译：进行了一个现象学和全面的研究，研究了K-0-<（K）over bar（0）>系统中CP，T和CPT对称性的（可能）违反。以相移不变的方式对相关的衰减幅度和混合参数进行参数化，并得出与现象学分析相关的公式。尝试从可用的实验数据中得出对这些CP，T和/或CPT违反参数的约束。已发现，除其他外，发信号CP和CPT违规的参数存在较大的误差，充其量仅比发信号CP和CPT违规的参数小一个或两个数量级，已知后者是有序的10（-3）。此外，要指出的是，那些既表示T和CPT违规但不表示CP违规的信号的参数在实验上还没有得到很好的约束。

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