3–7 Apr 2017
University of Birmingham
Europe/London timezone

Large-nf contributions to the four-loop splitting functions in QCD

6 Apr 2017, 11:00
17m
Large Lecture Theatre, Poynting Building

Large Lecture Theatre, Poynting Building

WG1) Structure Functions and Parton Densities WG1 Structure Functions and Parton Densities

Speaker

Josh Davies

Description

We have computed the fourth-order nf2 contributions to all three non-singlet quark–quark splitting functions and their four nf3 flavour-singlet counterparts for the evolution of the parton distributions of hadrons in perturbative QCD with nf effectively massless quark flavours. In this talk we give an overview of the method used to reconstruct the analytic form of these functions from their Mellin moments, computed by the recently-developed FORCER package.

Primary authors

Josh Davies Andreas Vogt (University of Liverpool) Ben Ruijl (Nikhef) Takahiro Ueda Jozef Anton Vermaseren

Presentation materials