Abstract
A dynamical calculation of the strange hidden charm pentaquark systems $\Lambda_{c\bar{c}}$ is performed in the framework of the quark delocalization color screening model. The effective potentials between two clusters are calculated to investigate the interaction between the baryons and mesons. The dynamic calculations indicate that the strange hidden charm pentaquark system with $IJ^{P}=0\frac{1}{2}^{-}$ and $IJ^{P}=0\frac{3}{2}^{-}$ can form bound states with the help of the channel-coupling. The energies of these two system are 4094.3 MeV and 4207.4 Mev, respectively. These two $\Lambda_{c\bar{c}}$ states are possible to be intriguing pentaquark candidates which are worth searching in experiments. Whereas, for the systems with isospin $I=1$, the effective potentials of all channels are repulsive, and there is no any bound state for these systems.
Highlights
There has been tremendous progress in the experimental and theoretical explorations of the multiquark states
We systematically study the properties of the hidden charm strange pentaquark by using the quark delocalization color screening model (QDCSM), which was proposed to study the multiquark system
This is an interesting subject for experiments at high energy accelerator facilities
Summary
There has been tremendous progress in the experimental and theoretical explorations of the multiquark states. In the framework of the quark delocalization color screening model, by considering the baryon-meson scattering process, Pc(4312) was proposed as a hidden-charm molecular state cDwith JP a. The results showed that the most promising strange hidden-charm molecular pentaquarks were the state with IJP = In Ref. We systematically study the properties of the hidden charm strange pentaquark by using the quark delocalization color screening model (QDCSM), which was proposed to study the multiquark system. Except the masses of mesons which take their experimental values, are fixed by fitting the masses of baryons with light flavors, are taken from our previous work [58], except for the charm quark mass, which is fixed by fitting to the mass of the heavy baryons and mesons. It has been used to explain the crossover transition between the hadron phase and the quark-gluon plasma phase [63]
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