Regular Article - Theoretical Physics
Possible molecular dibaryons with csssqq quarks and their baryon–antibaryon partners
School of Physics and Technology, Nanjing Normal University, 210097, Nanjing, China
2 Lanzhou Center for Theoretical Physics, Lanzhou University, 730000, Lanzhou, China
Accepted: 14 May 2023
Published online: 24 May 2023
In this work, we systematically investigate the charmed–strange dibaryon systems with csssqq quarks and their baryon–antibaryon partners from the interactions , , , and and their baryon–antibaryon partners from interactions , , , and . The potential kernels are constructed with the help of effective Lagrangians under SU(3), heavy quark, and chiral symmetries to describe these interactions. To search for possible molecular states, the kernels are inserted into the quasipotential Bethe–Salpeter equation, which is solved to find poles from scattering amplitude. The results suggest that 36 and 24 bound states can be found in the baryon–baryon and baryon–antibaryon interactions, respectively. However, much large values of parameter are required to produce the bound states from the baryon–antibaryon interactions, which questions the existence of these bound states. Possible coupled-channel effect are considered in the current work to estimate the couplings of the molecular states to the channels considered.
© The Author(s) 2023
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