https://doi.org/10.1140/epjc/s10052-025-13822-w
Regular Article - Theoretical Physics
Further study of 
system within a chiral quark model
1
Department of Physics, Yancheng Institute of Technology, 224000, Yancheng, People’s Republic of China
2
Department of Physics, Nanjing Normal University, 210023, Nanjing, People’s Republic of China
3
Department of Physics, Henan Normal University, 453007, Xinxiang, People’s Republic of China
a
hxhuang@njnu.edu.cn
b
tanyue@ycit.edu.cn
Received:
15
March
2024
Accepted:
15
January
2025
Published online:
5
February
2025
Inspired by the recent ATLAS and CMS experiments on the invariant mass spectrum of 
, we systematically study the system of 
. In the framework of chiral quark model, we have carried out bound-state calculation and resonance-state calculation respectively by using Real-scaling method. The results of bound-state calculation show that there are no bound states in the with 
system. The resonance-state calculation shows that there are four possible resonances: R(6923), R(6996), R(7060) and R(7159). R(6923) and R(7159) are experimental candidates for X(6900) and X(7200), whose main decay channel is . It is important to note that the another major decay channel of R(7159) is 
, and the is also the main decay channel of R(6996), R(7060). Therefore, we propose to search experimentally for these two predicted resonances in the invariant mass spectrum.
© The Author(s) 2025
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