Search for the rare decays B 0 ? J / ? ? and B s 0 ? J / ? ?

Search for the rare decays B 0 ? J / ? ? and B s 0 ? J / ? ?
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寻找罕见的衰变 B 0 ?

DOI:
10.1103/physrevd.92.112002
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发表时间:
2015
期刊:
影响因子:
5
通讯作者:
Aaij R
Aaij R
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Aaij R

文献摘要

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利用LHCb实验在8TeV和8TeV下收集的数据,对主介子罕见地衰变到终态进行了搜索,对应于积分光度。观察到的候选信号的数量与仅考虑背景的假设是一致的。在90%的置信度水平下,大于衰变模式的分支分数值被排除在外。对于衰变模式,在90%的置信度水平下排除大于的分支分数值;这是该衰变的第一个分支分数限制。
A search for the rare decay of aormeson into the final stateis performed, using data collected by the LHCb experiment incollisions atand 8 TeV, corresponding to an integrated luminosity of. The observed number of signal candidates is consistent with a background-only hypothesis. Branching fraction values larger thanfor thedecay mode are excluded at 90% confidence level. For thedecay mode, branching fraction values larger thanare excluded at 90% confidence level; this is the first branching fraction limit for this decay.