Heavy Quarks: Lessons Learned from HERA and Tevatron

TL;DR

This paper reviews recent advances in incorporating heavy quark masses into hard-scattering calculations and PDFs, comparing different schemes and discussing challenges at NNLO in global analyses.

Contribution

It provides a comparative analysis of schemes used in heavy quark mass treatments and discusses issues in extending calculations to NNLO.

Findings

Different schemes for heavy quark mass incorporation are compared.

Challenges in extending calculations to NNLO are identified.

Implications for global PDF analyses are discussed.

Abstract

We review some of the recent developments which have enabled the heavy quark mass to be incorporated into both the calculation of the hard-scattering cross section and the PDFs. We compare and contrast some of the schemes that have been used in recent global PDF analyses, and look at issues that arise when these calculations are extended to NNLO.