# Pentaquark states with hidden charm

## TL;DR

This paper extends the three-flavor quark model to four flavors to classify pentaquark states with hidden charm, motivated by recent experimental observations by LHCb at CERN.

## Contribution

It introduces a four-flavor quark model framework specifically for classifying hidden charm pentaquark states, expanding theoretical understanding.

## Key findings

- Classification scheme for hidden charm pentaquarks
- Alignment with LHCb experimental observations
- New insights into multiquark state structures

## Abstract

I develop an extension of the usual three-flavor quark model to four flavors (u, d, s and c), and discuss the classification of pentaquark states with hidden charm. This work is motivated by the recent observation of such states by the LHCb Collatoration at CERN.