Measurement of D0-D0 mixing parameters and search for CP violation using D0 ? K+ p- decays.
Measurement of D0-D0 mixing parameters and search for CP violation using D0 ? K+ p- decays.
复制标题
测量 D0-D0 混合参数并使用 D0 搜索 CP 违规？
DOI：
10.1103/physrevlett.111.251801
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发表时间：
2013
影响因子：
8.6
通讯作者：
Aaij R
中科院分区：
文献类型：
--
作者：
Aaij R
本文报道了由衰减时间相关比率和电荷共轭比率测量的魅力混合参数。分析使用数据，对应<？格式吗?从7和8 TeV质量中心的质子-质子碰撞产生的积分光度<？格式吗?LHCb实验记录的>能量。在电荷宇称对称的极限下，确定混合参数为、、和。考虑到违和，测量是单独进行的，对于直接违和的不对称，以及在68.3%的置信水平下，对于描述混合违和的参数。这是<？格式吗?>从单个实验中最精确地确定了这些参数，并且没有证据表明<？格式? >侵犯。
Measurements of charm mixing parameters from the decay-time-dependent ratio oftorates and the charge-conjugate ratio are reported. The analysis uses data, corresponding <?format ?>toof integrated luminosity, from proton-proton collisions at 7 and 8 TeV center-of-mass <?format ?>energies recorded by the LHCb experiment. In the limit of charge-parity () symmetry, the mixing parameters are determined to be,, and. Allowing forviolation, the measurement is performed separately forandmesons yielding, for the direct-violating asymmetry, andat the 68.3% confidence level, for the parameter describingviolation in mixing. This is the <?format ?>most precise determination of these parameters from a single experiment and shows no evidence for <?format ?>violation.