CP violation in non-leptonic Bc decays to excited final states
CP violation in non-leptonic Bc decays to excited final states
复制标题
非轻子 Bc 中的 CP 破坏衰减至激发终态
DOI：
10.1140/epjc/s10052-021-09128-2
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发表时间：
2021
影响因子：
4.4
通讯作者：
Guo-Li Wang
中科院分区：
文献类型：
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作者：
Tian Zhou;Tianhong Wang;Hui-Feng Fu;Zhi-Hui Wang;Lei Huo;Guo-Li Wang
本文研究了介子两体非轻子衰变中的CP破坏。我们集中在衰变通道，其中包含至少一个激发态重介子的最终状态。具体而言，考虑以下通道：、和。用改进的Bethe-Salpeter方法计算了强子跃迁矩阵元。我们的结果表明，一些衰变模式有大的分支比，这是数量级。最有可能发现的是、、中的CP破坏效应，如果要使这类信道中CP不对称的检测精度达到这一水平，至少还需要有个事件。
We study the CP violation in two-body nonleptonic decays ofmeson. We concentrate on the decay channels which contain at least one excited heavy meson in the final states. Specifically, the following channels are considered:,,,, and. The improved Bethe-Salpeter method is applied to calculate the hadronic transition matrix element. Our results show that some decay modes have large branching ratios, which is of the order of. The CP violation effect in,, andare most likely to be found. If the detection precision of the CP asymmetry in such channels can reach thelevel, at leastevents are needed.