Three-body charmless baryonic Bs decays
Three-body charmless baryonic Bs decays
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三体无魅力重子 B 衰变
DOI：
10.1016/j.physletb.2017.02.001
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Eduardo Rodrigues
中科院分区：
文献类型：
--
作者：
C.Q. Geng;Yu-Kuo Hsiao;Eduardo Rodrigues
本文首次研究了三体无粲重子衰变。我们发现，和的分支比分别为和，这与最近的实验结果报告的LHCb合作。此外，本发明还提供了一种方法，我们推导出关系\mbox{${\cal B}（\bar B^0_s\to \bar p \Lambda K^+）\simeq（f_K/f_\pi）^2（\tau_{B^0_s}/\tau_{B^0}）{\cal B}（\bar B^0\to\bar p \Lambda \pi^+）$}和${\cal B}（\bar B^0_s\to p\bar \Lambda \pi^-）/{\cal B}（\bar B^0_s\to p\bar \Lambda K^-）\simeq {\cal B}（B^-\to p\bar p \pi^-）/{\cal B}（B^-\to p\bar p K^-）$将面临未来的实验测量。这四个过程都可以发生的事实，开启了在重子衰变中测量依赖于衰变时间的CP破坏的可能性，这是以前没有实现的。
We study for the first time the three-body charmless baryonic decays, with. We find that the branching ratios ofandandareand, respectively, which agree with recent experimental results reported by the LHCb collaboration. In addition, we derive the relations \mbox{${\cal B}(\bar B^0_s\to \bar p \Lambda K^+)\simeq (f_K/f_\pi)^2(\tau_{B^0_s}/\tau_{B^0}) {\cal B}(\bar B^0\to \bar p \Lambda \pi^+)$} and ${\cal B}(\bar B^0_s\to p\bar \Lambda \pi^-)/{\cal B}(\bar B^0_s\to p\bar \Lambda K^-)\simeq {\cal B}(B^-\to p\bar p \pi^-)/{\cal B}(B^-\to p\bar p K^-)$ to be confronted to future experimental measurements. The fact that all four processescan occur opens the possibility of decay-time-dependent CP violation measurements in baryonicdecays, something that had not been realised before.