https://doi.org/10.1140/epjc/s10052-017-5091-3
Regular Article - Theoretical Physics
CP violation induced by the double resonance for pure annihilation decay process in perturbative QCD
1
College of Science, Henan University of Technology, Zhengzhou, 450001, China
2
Department of Physics, Guangxi Normal University, Guilin, 541004, China
* e-mail: ganglv66@sina.com
Received:
6
March
2017
Accepted:
20
July
2017
Published online:
4
August
2017
In a perturbative QCD approach we study the direct CP violation in the pure annihilation decay process of 
induced by the 
and 
double resonance effect. Generally, the CP violation is small in the pure annihilation type decay process. However, we find that the CP violation can be enhanced by double – interference when the invariant masses of the 
pairs are in the vicinity of the resonance. For the decay process of , the CP violation can reach 
.
© The Author(s), 2017
