Towards NNLO+PS Matching with Sector Showers
High Energy Physics - Phenomenology
2022-12-21 v2 High Energy Physics - Experiment
Abstract
We outline a new technique for the fully-differential matching of final-state parton showers to NNLO calculations, focussing here on the simplest case of leptonic collisions with two final-state jets. The strategy is facilitated by working in the antenna formalism, making use of NNLO antenna subtraction on the fixed-order side and the sector-antenna framework on the shower side. As long as the combined real-virtual and double-real corrections do not overcompensate the real-emission term in the three-jet region, negative weights can be eliminated from the matching scheme. We describe the implementation of all necessary components in the VINCIA antenna shower in PYTHIA 8.3.
Keywords
Cite
@article{arxiv.2108.07133,
title = {Towards NNLO+PS Matching with Sector Showers},
author = {John M Campbell and Stefan Höche and Hai Tao Li and Christian T Preuss and Peter Skands},
journal= {arXiv preprint arXiv:2108.07133},
year = {2022}
}
Comments
Version submitted to PLB