Two-mass three-loop effects in deep-inelastic scattering

TL;DR

This paper presents recent calculations of two-mass three-loop effects in deep-inelastic scattering within QCD, focusing on corrections significant for the variable flavor number scheme due to charm and bottom quark mass similarities.

Contribution

It provides new two-mass corrections at 2- and 3-loop orders, enhancing the precision of QCD predictions in deep-inelastic scattering.

Findings

Calculated two-mass corrections at 2- and 3-loop levels

Highlights importance for variable flavor number scheme

Addresses charm and bottom quark mass effects

Abstract

We report on recent results on the two-mass corrections for massive operator matrix elements at 2- and 3-loop orders in QCD. These corrections form the building blocks of the variable flavor number scheme. Due to the similar values of the charm and bottom quark masses the two-mass corrections form an important contribution.