Study of charmonium decays to K S 0 K p in the B ? ( K S 0 K p ) K channels
Study of charmonium decays to K S 0 K p in the B ? ( K S 0 K p ) K channels
复制标题
研究粲素在 B 中衰变为 K S 0 K p ？
DOI：
10.1103/physrevd.108.032010
复制
发表时间：
2023
影响因子：
5
通讯作者：
Aaij R
中科院分区：
文献类型：
--
作者：
Aaij R
在LHCb实验中，利用质心能量为7、8和13 TeV的质子-质子碰撞，研究了质子和衰变。两种衰变模式的不变质谱显示了丰富的粲偶素共振。新的精确测量的和共振参数进行和分支分数测量获得衰变到，和共振。特别是，第一次观察和分支分数测量的报告，以及第一次测量的和分支分数。用Dalitz作图法分析了它们的衰变.一个新的测量的振幅和相位的波的功能themass进行，连同测量的，和参数。最后，还测量了衰变到共振态的分支分数。
A study of theanddecays is performed using proton-proton collisions at center-of-mass energies of 7, 8 and 13 TeV at the LHCb experiment. Theinvariant mass spectra from both decay modes reveal a rich content of charmonium resonances. New precise measurements of theandresonance parameters are performed and branching fraction measurements are obtained fordecays to,,andresonances. In particular, the first observation and branching fraction measurement ofis reported as well as first measurements of theandbranching fractions. Dalitz plot analyses ofanddecays are performed. A new measurement of the amplitude and phase of the-wave as functions of themass is performed, together with measurements of the,andparameters. Finally, the branching fractions ofdecays toresonances are also measured.