Renormalon Cancellation in Heavy Quarkonia and Determination of m_b, m_t

TL;DR

This paper explains how renormalon cancellation in heavy quarkonium systems enables precise extraction of bottom and top quark masses, highlighting recent theoretical advances in the field.

Contribution

It introduces the concept of renormalon cancellation in heavy quarkonium and demonstrates its application in determining quark masses with improved accuracy.

Findings

Renormalon cancellation occurs in heavy quarkonium systems.

Application of this concept improves the precision of m_b and m_t determinations.

Provides an elementary overview of recent theoretical progress.

Abstract

This is an elementary introduction to the recent significant theoretical progress in the field of heavy quarkonium physics. We show how renormalon cancellation takes place in the heavy quarkonium system, such as bottomonium and (remnant of) toponium resonance, and how this notion is useful in extracting the MSbar masses of the bottom and top quarks.