The QCD form factor of massive quarks and applications

TL;DR

This paper reviews the two-loop QCD radiative corrections to the electromagnetic form factor of heavy quarks, highlighting its properties like exponentiation and significance in QCD factorization for massive amplitudes.

Contribution

It provides a detailed review of the two-loop QCD corrections to the heavy-quark form factor and discusses its theoretical properties and applications.

Findings

Two-loop QCD corrections are crucial for accurate heavy-quark form factor calculations.

The form factor exhibits exponentiation in the high-energy limit.

It plays a key role in QCD factorization theorems for massive parton amplitudes.

Abstract

We review the electromagnetic form factor of heavy quarks with emphasis on the QCD radiative corrections at two-loop order in the perturbative expansion. We discuss important properties of the heavy-quark form factor such as its exponentiation in the high-energy limit and its role in QCD factorization theorems for massive n-parton amplitudes.