Analysis of the resonant components in B ¯ s 0 ? J / ? p + p -
Analysis of the resonant components in B ¯ s 0 ? J / ? p + p -
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B s 0 ? 中谐振分量的分析
DOI：
10.1103/physrevd.86.052006
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发表时间：
2012
影响因子：
5
通讯作者：
Aaij R
中科院分区：
文献类型：
--
作者：
Aaij R
衰变可以用来研究违逆。为了优化其用途，详细了解其结构是必要的。利用LHC上7次tev碰撞产生的数据样本和LHCb实验收集的数据样本，对这种三体最终态进行了分析。利用不变质谱和衰减角分布对最终态进行了改进的达利茨图分析。系统显示出主要处于一波状态，并且在95%置信水平下，该衰减中的奇数分数显示大于0.977。此外，我们报告了相对于的分支分数的第一次测量。
The decaycan be exploited to studyviolation. A detailed understanding of its structure is imperative in order to optimize its usefulness. An analysis of this three-body final state is performed using asample of data produced in 7 TeVcollisions at the LHC and collected by the LHCb experiment. A modified Dalitz plot analysis of the final state is performed using both the invariant mass spectra and the decay angular distributions. Thesystem is shown to be dominantly in an-wave state, and the-odd fraction in thisdecay is shown to be greater than 0.977 at 95% confidence level. In addition, we report the first measurement of thebranching fraction relative toof.