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photo Rikkert Frederix

Rikkert Frederix

Senior lecturer

photo Rikkert Frederix

A new way of reducing negative weights in MC@NLO

Author

  • Rikkert Frederix
  • Paolo Torrielli

Summary, in English

We introduce a new technique, that we dub Born spreading, aimed at reducing the number of negative-weight S 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.

Department/s

  • Particle and nuclear physics

Publishing year

2023-11

Language

English

Publication/Series

European Physical Journal C

Volume

83

Issue

11

Document type

Journal article

Publisher

Springer

Topic

  • Other Physics Topics

Status

Published

ISBN/ISSN/Other

  • ISSN: 1434-6044