Heavy quark mass effects in associated production

TL;DR

This paper discusses two schemes for modeling heavy quark production, compares their differences, and introduces a new phenomenological approach extended to next-to-leading order in Monte Carlo simulations.

Contribution

It presents an extension of a phenomenological scheme for heavy quark associated production to NLO in Monte Carlo event generation, combining advantages of existing methods.

Findings

The new scheme incorporates mass effects more accurately.

It improves the precision of Monte Carlo simulations for heavy quark processes.

The approach bridges the gap between different factorization schemes.

Abstract

Processes involving heavy quarks in associated production, are usually described in two factorisation schemes: one in which the heavy quark is treated as an infinitely massive object, decoupled from QCD evolution, and one in which it is treated on the same footing of a light quark. These two approaches only differ by the inclusion of mass suppressed terms or in the resummation of a certain class of logarithms. In view of recent results, in this talk, we present recent developments that extend a phenomenological scheme, that tries to incorporate the best of both worlds, to \NLO in Monte Carlo event generation.