Flavor dependence of normalization constant for an infrared renormalon

TL;DR

This paper proposes an ansatz to describe how the normalization constant of the first infrared renormalon in heavy quark pole mass depends on the number of quark flavors, aiming to improve understanding of nonperturbative effects.

Contribution

It introduces a new ansatz for the flavor dependence of the IR renormalon normalization constant in heavy quark pole mass calculations.

Findings

The ansatz provides a consistent description of flavor dependence.

It offers insights into nonperturbative contributions in QCD.

Potential applications in precise quark mass determinations.

Abstract

An ansatz is proposed for the flavor dependence of the normalization constant for the first IR renormalon in heavy quark pole mass.