https://doi.org/10.1140/epjc/s10052-023-12355-4
Regular Article - Theoretical Physics
Strong decays of 
as a fully open-flavor tetraquark state
1
School of Physics, Sun Yat-Sen University, 510275, Guangzhou, China
2
School of Physics, Southeast University, 210094, Nanjing, China
3
School of Physics and Electronics, Hunan University, 410082, Changsha, China
4
Hunan Provincial Key Laboratory of High-Energy Scale Physics and Applications, Hunan University, 410082, Changsha, China
5
Department of Physics and Engineering Physics, University of Saskatchewan, S7N 5E2, Saskatoon, SK, Canada
Received:
27
September
2023
Accepted:
12
December
2023
Published online:
4
January
2024
We have studied the strong decay properties of the recently observed by considering it as a 
fully open-flavor tetraquark state with 
. In the framework of QCD sum rules, we have calculated the three-point correlation functions of the two-body strong decay processes 
, 
and 
. The full width of is obtained as 
MeV, which is consistent with the experimental observation. We predict the relative branching ratios as 
, implying that the main decay modes of state are 
and DK channels in our calculations. However, the P-wave decay mode 
is also comparable and important by including the uncertainties. To further identify the nature of 
, we suggest confirming them in the DK and 
final states, and measuring the above ratios in future experiments.
© The Author(s) 2024
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