https://doi.org/10.1140/epjc/s10052-021-09128-2
Regular Article - Theoretical Physics
CP violation in non-leptonic 
decays to excited final states
1
School of Physics, Harbin Institute of Technology, 150001, Harbin, China
2
Center for Theoretical Physics, College of Physics, Jilin University, 130012, Changchun, China
3
School of Electrical and Information Engineering, North Minzu University, 750021, Yinchuan, China
Received:
14
December
2020
Accepted:
9
April
2021
Published online:
20
April
2021
We study the CP violation in two-body nonleptonic decays of meson. 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 
, 
, and 
are most likely to be found. If the detection precision of the CP asymmetry in such channels can reach the 
level, at least 
events are needed.
© The Author(s) 2021
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