# Confronting pentaquark photoproduction with new LHCb observations

## TL;DR

This paper examines the constraints imposed by recent LHCb measurements on pentaquark production and decay, highlighting tensions with existing experimental searches and theoretical models of $P_c$ states.

## Contribution

It provides a critical analysis of how new LHCb data restricts pentaquark photoproduction models and challenges current understanding of $P_c$ decay properties.

## Key findings

- LHCb measurements limit $P_c$ decay branching ratios.
- Current experiments face tension with LHCb results.
- Existing models are challenged by new decay constraints.

## Abstract

The newly measurement of production fractions of $P_c$ states by LHCb collaboration have put restriction on their branching ratios of $J/\psi p$ decay, thus constraining their photoproduction in $\gamma p\to J/\psi p$ reaction. We show the tension between LHCb results and the current experiments in search of $P_c$ photoproduction. We also find that the present information of branching ratios of $P_c\to J/\psi p$ has already confronted sharply with the models which study the nature of $P_c$.