https://doi.org/10.1140/epjc/s10052-019-7313-3
Regular Article - Theoretical Physics
Studies of the resonance components in the 
decays into charmonia plus kaon pair
1
College of Sciences, North China University of Science and Technology, Tangshan, 063210, Hebei, China
2
Department of Physics, College of Science, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
* e-mail: jindui1127@126.com
Received:
14
July
2019
Accepted:
14
September
2019
Published online:
24
September
2019
In this work, the decays of meson to a charmonium state and a 
pair are carefully investigated in the perturbative QCD approach. Following the latest fit from the LHCb experiment, we restrict ourselves to the case where the produced pair interact in isospin zero S, P, and D wave resonances in the kinematically allowed mass window. Besides the dominant contributions of the 
resonance in the P-wave and 
in the D-wave, other resonant structures in the high mass region as well as the S-wave components are also included. The invariant mass spectra for most of the resonances in the 
decay are well reproduced. The obtained three-body decay branching ratios can reach the order of 
, which seem to be accessible in the near future experiments. The associated polarization fractions of those vector-vector and vector-tensor modes are also predicted, which are compared with the existing data from the LHCb Collaboration.
© The Author(s), 2019
