Single-top t-channel hadroproduction in the four-flavour scheme with POWHEG and aMC@NLO

TL;DR

This paper provides a detailed NLO QCD calculation of single-top t-channel production in the 4-flavour scheme, interfaced with Parton Shower programs, comparing two methods and presenting new kinematic distribution results.

Contribution

It introduces the first NLO+PS results for spectator-b-jet distributions in the 4-flavour scheme for single-top production.

Findings

Comparison between POWHEG and MC@NLO methods.

First NLO+PS distributions for spectator-b-jet.

Insights into differences with the 5-flavour scheme.

Abstract

We present results for the QCD next-to-leading order (NLO) calculation of single-top t-channel production in the 4-flavour scheme, interfaced to Parton Shower (PS) Monte Carlo programs according to the POWHEG and MC@NLO methods. Comparisons between the two methods, as well as with the corresponding process in the 5-flavour scheme are presented. For the first time results for typical kinematic distributions of the spectator-b jet are presented in an NLO+PS approach.