https://doi.org/10.1140/epjc/s10052-022-11120-3
Regular Article - Theoretical Physics
Molecular interpretation of X(3960) as 
state
1
Department of Physics, Faculty of Sciences, Ondokuz Mayis University, 55139, Samsun, Turkey
2
Institute for Advanced Simulation, Institut für Kernphysik and Jülich Center for Hadron Physics, Forschungszentrum Jülich, 52425, Jülich, Germany
Received:
27
October
2022
Accepted:
18
November
2022
Published online:
17
December
2022
We study and 
states assuming that they are hadronic molecules with 
quantum number. We use two-point QCD sum rule formalism and extract the mass and decay constant values of these states. We take into account contributions of various quark, gluon, and mixed vacuum condensates up to dimension eight. The extracted mass and decay constant values of and states read as 
, 
, and 
, 
, respectively. The predicted mass of state is in good agreement with the recent LHCb observation and supports quantum number and molecular picture assignments. A possible observation of state would help for establishing the lowest four-quark state in charmonium sector.
© The Author(s) 2022
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