A new way of reducing negative weights in MC@NLO
High Energy Physics - Phenomenology
2023-10-09 v1
Abstract
We introduce a new technique, that we dub Born spreading, aimed at reducing the number of negative-weight events in the MC@NLO matching of NLO calculations with parton-shower simulations. We show that such a technique, based on a re-distribution of Born matrix elements in the radiative phase space, achieves a sizeable reduction of negative-weight events at little computational cost. The method does not induce any biases in physical distributions.
Cite
@article{arxiv.2310.04160,
title = {A new way of reducing negative weights in MC@NLO},
author = {Rikkert Frederix and Paolo Torrielli},
journal= {arXiv preprint arXiv:2310.04160},
year = {2023}
}
Comments
5 pages, 1 table