A gluon condensate term in a heavy quark mass

TL;DR

This paper explores the link between renormalon ambiguities in heavy quark mass calculations and the gluon condensate's role in modifying the quark's dispersion relation within hadrons, highlighting non-perturbative effects.

Contribution

It introduces a novel connection between renormalon ambiguities and gluon condensate contributions affecting heavy quark properties inside hadrons.

Findings

Identifies a relationship between renormalon ambiguity and gluon condensate effects.

Shows how gluon condensate influences the virtuality and mass-shell displacement of heavy quarks.

Provides insights into non-perturbative QCD effects on heavy quark dynamics.

Abstract

We investigate a connection between a renormalon ambiguity of heavy quark mass and the gluon condensate contribution into the quark dispersion law related with a virtuality defining a displacement of the heavy quark from the perturbative mass-shell, which happens inside a hadron.