CoLoRFul for hadron collisions: Integrating the counterterms
S. Van Thurenhout, V. Del Duca, C. Duhr, L. Fek\'esh\'azy, F. Guadagni, P. Mukherjee, G. Somogyi, F. Tramontano
TL;DR
This paper discusses extending the CoLoRFul subtraction scheme to hadron-hadron collisions, focusing on the analytic computation of integrated counterterms to handle divergences in QCD scattering cross section calculations.
Contribution
The paper presents the novel extension of the CoLoRFul subtraction scheme to hadron-hadron collisions, including the analytic computation of integrated counterterms.
Findings
Successful extension of the subtraction scheme to hadron collisions
Analytic expressions for integrated counterterms derived
Improved methods for handling divergences in QCD calculations
Abstract
In order to numerically compute scattering cross sections in QCD, one needs to deal with various kinematic divergences that appear at intermediate stages of the calculation. One way of doing this is by setting up an IR subtraction scheme. In this talk we give an update on the status of extending the CoLoRFul subtraction scheme, which has been successfully used in the past for processes with only final-state hadrons, to hadron-hadron collisions. In particular we discuss the analytic computation of the integrated counterterms.
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