https://doi.org/10.1140/epjc/s10052-020-8372-1
Regular Article - Theoretical Physics
The weak decay 
to Z(3930) and X(4160) by Bethe–Salpeter method
1
Key Laboratory of Physics and Photoelectric Information Functional Materials, North Minzu University, Yinchuan, 750021, China
2
School of Electrical and Information Engineering, North Minzu University, Yinchuan, 750021, China
3
School of Physics, Harbin Institute of Technology, Harbin, 150001, China
4
Department of Physics, Hebei University, Baoding, 071002, China
5
Hebei Key Laboratory of High-precision Computation and Application of Quantum Field Theory, Baoding, 071002, China
* e-mail: zhwang@nmu.edu.cn
Received:
18
May
2020
Accepted:
17
August
2020
Published online:
28
August
2020
Considering Z(3930) and X(4160) as 
and 
states, the semileptonic and nonleptonic of decays to Z(3930) and X(4160) are studied by the improved Bethe–Salpeter (B–S) Method. The form factors of decay are calculated through the overlap integrals of the meson wave functions in the whole accessible kinematical range. The influence of relativistic corrections are considered in the exclusive decays. Branching ratios of weak decays to Z(3930) and X(4160) are predicted. Some of the branching ratios are: 
and 
. These results may provide useful information to discover Z(3930) and X(4160) and the necessary information for the phenomenological study of physics.
© The Author(s), 2020
