Measurement of the ?_{b}^{0}??(1520)µ^{+}µ^{-} Differential Branching Fraction.
Measurement of the ?_{b}^{0}??(1520)µ^{+}µ^{-} Differential Branching Fraction.
复制标题
测量 ?_{b}^{0}??(1520)μ^{ }μ^{-} 差异支化分数。
DOI：
10.1103/physrevlett.131.151801
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发表时间：
2023
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
首次测量了稀有衰变的分枝分数，单位为双分子质量平方区间，不包括和区域。所分析的数据样本是由LHCb实验在7、8和13TeV的质心能量下收集的，对应于总积分光度。在理论预测具有最小模型依赖性的最高区间内，结果与预测一致。
The branching fraction of the rare decayis measured for the first time, in the squared dimuon mass intervals, excluding theandregions. The data sample analyzed was collected by the LHCb experiment at center-of-mass energies of 7, 8, and 13 TeV, corresponding to a total integrated luminosity of. The result in the highestinterval,, where theoretical predictions have the smallest model dependence, agrees with the predictions.