Automation of Beam and Jet functions at NNLO

2021/10/10 by Bell, Guido, Brune, Kevin, Das, Goutam +1 · 2 citations
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.2110.04804

Abstract

We present a novel framework to streamline the calculation of jet and beam functions to next-to-next-to-leading order (NNLO) in perturbation theory. By exploiting the infrared behaviour of the collinear splitting functions, we factorise the singularities with suitable phase-space parametrisations and perform the observable-dependent integrations numerically. We have implemented our approach in the publicly available code \tt pySecDec and present first results for sample jet and beam functions.

Cited by

• Analytical results for the C-angularity soft function at NNLO
• The Quark Jet Function for k_T-like Variables in NNLO QCD

Related

• Automated Calculation of Beam Functions at NNLO
• Quark and gluon two-loop beam functions for leading-jet p_T and slicing at NNLO
• Jet cross sections and transverse momentum distributions with NNLOJET
• The NNLO gluon beam function for jet-veto resummation
• NNLO contributions to jet photoproduction and determination of α_s