^{*}

^{†}

hxhuang@njnu.edu.cn

jlping@njnu.edu.cn

^{3}.

In the framework of the chiral quark model, we investigate the hidden strange pentaquark system of the

Quantum chromodynamics (QCD) is the underlying theory of the strong interaction. However, it is difficult to study structures of hadrons and hadron-hadron interactions directly because of the nonperturbative properties of QCD in the low energy region, although lattice QCD has made impressive progress on nucleon-nucleon interactions and multiquark systems

Inspired by the hidden charm pentaquark states, people are also interested in the hidden strange pentaquark states, which are composed of

To search for the

According to the experimental information, in the vicinity of 2 GeV, a

It is obvious that there is no common flavor quark between

This paper is organized as follows. First, the chiral quark model is introduced briefly. The results for the

The chiral quark model has resulted in great achievements in describing hadron spectra, nucleon-nucleon interactions, and multiquark states

where

To study the

All the other symbols in the above expressions have their usual meanings, and all the parameters needed in the present calculation are taken from Ref.

The parameters of the models:

The masses of ground-state baryons and mesons (in MeV).

Here, we investigate the properties of the

In our calculation, we consider the effect of channel coupling including both the color-singlet channels and the hidden-color channels. Color singlet means the color symmetries of the

The symmetries of colorful

Channels of the

Since an attractive potential is necessary for forming bound state or resonance, the effective potentials between

The contributions of various terms of the Hamiltonian to the effective potentials.

To investigate the contribution of each interaction term to the total effective potentials between

In order to see whether or not there is any bound state, we continue to do a dynamic calculation. The binding energies of the

The binding energies B with channel coupling.

Next we take into account the effects of channel coupling. From Table

Moreover, we can obtain the relative motion wave function

The relative motion wave function of the

Finally, we should mention how we obtain the mass of a hidden strange molecular pentaquark in this work. Generally, the mass of a molecular pentaquark can be written as

In this paper, we look for the

The hidden charm pentaquark candidates have been reported by LHCb; we also expect the existence of the hidden strange pentaquark

This work is supported partly by the National Natural Science Foundation of China under Contracts No. 11675080, No. 11775118, and No. 11535005, and by the Natural Science Foundation of the Jiangsu Higher Education Institutions of China (Grant No. 16KJB140006).