https://doi.org/10.1140/epjc/s10052-025-14795-6
Regular Article - Theoretical Physics
Charmonium content of 
in light-cone sum rules at twist 3
1
Department of Physics, Yozgat Bozok University, Yozgat, Turkey
2
Department of Electrical and Electronics Engineering, University of Turkish Aeronautical Association, Ankara, Turkey
3
Department of Physics, Middle East Technical University, Ankara, Turkey
a
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Received:
9
August
2025
Accepted:
11
September
2025
Published online:
14
October
2025
In this study, we utilize light-cone QCD sum rules at twist-3 accuracy to compute the coupling parameters of the 
state with D and 
mesons. The analysis reveals that the observed meson incorporates significant amounts of both charmonium and molecular components. The interplay between these components highlights the exotic nature of . Furthermore, implications for a possible mixing between the 
state and a potential 
molecule is discussed. These findings contribute to the understanding of exotic hadron states and their intricate internal structures.
© The Author(s) 2025
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