Observation of B(s)(0) ? J/? f1(1285) decays and measurement of the f1(1285) mixing angle.
Observation of B(s)(0) ? J/? f1(1285) decays and measurement of the f1(1285) mixing angle.
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观察 B(s)(0) ？
DOI：
10.1103/physrevlett.112.091802
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发表时间：
2014
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
利用与LHCb探测器收集的积分光度相对应的数据，研究了在LHC碰撞中产生的进入终态的介子和衰变。衰变是第一次观察到，并测量了分支分数。利用这些速率，确定了结构模型中其波函数的奇异分量和非奇异分量之间的混合角。文中还讨论了可能存在的四夸克性质。
Decays ofandmesons intofinal states, produced incollisions at the LHC, are investigated using data corresponding to an integrated luminosity ofcollected with the LHCb detector.decays are seen for the first time, and the branching fractions are measured. Using these rates, themixing angle between strange and nonstrange components of its wave function in thestructure model is determined to be. Implications on the possible tetraquark nature of theare discussed.