# Compact $sssc\bar{c}$ pentaquark states predicted by a quark model

## TL;DR

This paper predicts several compact $sssc\bar{c}$ pentaquark resonances using a sophisticated quark model and five-body calculations, providing specific energy and width predictions as potential experimental or lattice QCD candidates.

## Contribution

The study introduces the first detailed five-body calculations of $sssc\bar{c}$ pentaquark states with explicit baryon-meson threshold considerations using the best available quark model.

## Key findings

- Predicted four sharp pentaquark resonances with specific quantum numbers and energies.
- Resonance energies: 5180, 5360, 5645, 5670 MeV.
- Resonance widths: 20, 80, 30, 50 MeV.

## Abstract

Several compact $sssc\bar c$ pentaquark resonances are predicted in a potential quark model. The Hamiltonian is the best available one, which reproduces the masses of the low-lying charmed and strange hadrons well. Full five-body calculations are carried out by the use of the Gaussian expansion method, and the relevant baryon-meson thresholds are taken into account explicitly. Employing the real scaling method, we predict four sharp resonances, $J^P=1/2^-$ ($E=5180$ MeV, $\Gamma=20$ MeV), $5/2^-$ (5645 MeV, 30 MeV), $5/2^-$ (5670 MeV, 50 MeV), and $1/2^+$ (5360 MeV, 80 MeV). These are the candidates of compact pentaquark resonance states from the current best quark model, which should be confirmed either by experiments or lattice QCD calculations.