Analysis of decays
Hao-Nan Wang (Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China, School of Nuclear Sciences and Technology, University of Chinese Academy of Sciences, Beijing 101408, China); Li-Sheng Geng (School of Physics, Beihang University, Beijing 102206, China, Beijing Key Laboratory of Advanced Nuclear Materials and Physics, Beihang University, Beijing 102206, China, Peng Huanwu Collaborative Center for Research and Education, Beihang University, Beijing 100191, China, Southern Center for Nuclear-Science Theory (SCNT), Institute of Modern Physics, Chinese Academy of Sciences, Huizhou 516000, China); Gang Li (College of Physics and Engineering, Qufu Normal University, Qufu 273165, China); Ju-Jun Xie (Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China, School of Nuclear Sciences and Technology, University of Chinese Academy of Sciences, Beijing 101408, China, Southern Center for Nuclear-Science Theory (SCNT), Institute of Modern Physics, Chinese Academy of Sciences, Huizhou 516000, China)
We have phenomenologically investigated the decays and . In our analysis, the scalar meson is formed through the final state interactions of coupled channels and . Our findings indicate that the invariant mass distribution of the decay can be accurately reproduced. Furthermore, we have explored the invariant mass distribution of the decay, accounting for the different production mechanisms between and , up to a global factor. It is found that the production rates for and are much different, which indicates that the structure of is more complicated than the , which is a conventional state. Additionally, we have considered the contributions from to and the meson to in our analysis. Utilizing the model parameters, we have calculated the branching fraction of , and anticipate that the findings of our study can be experimentally tested in the future.