Finding Interaction Mechanism between Exotic Molecule and Conventional Hadron

TL;DR

This paper introduces a new mechanism to understand how exotic hadronic molecules, like hidden-charm pentaquarks, interact with conventional hadrons, predicting possible bound states and expanding the scope of hadron spectroscopy.

Contribution

The work proposes a novel interaction mechanism for hadronic molecules and derives potentials to predict bound states, applicable to various hadron systems beyond $P_cN$.

Findings

Prediction of $P_cN$ bound states as new matter forms

Extension of the mechanism to other hadronic molecules

Potential for discovering diverse novel bound states

Abstract

An intriguing and important question arises: how do hadronic molecules interact with conventional hadrons? In this work, we propose a novel mechanism to address this issue, focusing on the interactions between hidden-charm molecular pentaquarks ($P_c$) and nucleons ($N$). By applying this mechanism, we derive the corresponding interaction potentials, enabling the prediction of the bound state properties. Our results indicate the possible existence of $P_cN$ bound states-an entirely new form of matter, ripe for exploration in the era of high-precision hadron spectroscopy. Notably, this mechanism extends beyond the $P_cN$ systems and can be applied to any hadronic molecules interacting with conventional hadrons, offering the potential for discovering a variety of novel bound states.