Determination of $J/\psi$ chromoelectric polarizability from lattice data

TL;DR

This paper extracts the chromoelectric polarizability of the $J/ar{psi}$ particle from lattice QCD data, providing a quantitative value and discussing implications for hadrocharmonia.

Contribution

It presents a novel extraction of $J/ar{psi}$ chromoelectric polarizability from lattice data, a key parameter in understanding quarkonium interactions.

Findings

Chromoelectric polarizability $eta(1S) = (1.6 \,\pm\ 0.8) \,\mathrm{GeV}^{-3}$

Potential implications for hadrocharmonia

Insights into heavy quark limit interactions

Abstract

The chromoelectric polarizability of $J/\psi$ is extracted from lattice QCD data on the nucleon-$J/\psi$ potential in the heavy quark limit. The value of $\alpha(1S) = (1.6 \pm 0.8) \,{\rm GeV}^{-3} $ is obtained. We also comment on the possibility of hadrocharmonia.