Jet production in the CoLoRFulNNLO method: event shapes in electron-positron collisions

TL;DR

The paper introduces the CoLoRFulNNLO method for calculating higher order QCD corrections to jet observables, demonstrating its application to event shapes and jet cone energy fraction in electron-positron collisions at NNLO accuracy.

Contribution

It presents a new computational method, CoLoRFulNNLO, for precise NNLO calculations of jet observables, including the first NNLO calculation of jet cone energy fraction.

Findings

Validated the CoLoRFulNNLO method against existing results.

Achieved NNLO accuracy for event shape observables.

First NNLO calculation of jet cone energy fraction.

Abstract

We present the CoLoRFulNNLO method to compute higher order radiative corrections to jet cross sections in perturbative QCD. We apply our method to the computation of event shape observables in electron-positron collisions at NNLO accuracy and validate our code by comparing our predictions to previous results in the literature. We also calculate for the first time jet cone energy fraction at NNLO.