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MiNNLOPS: a new method to match NNLO QCD to parton showers

Journal of High Energy Physics volume 2020, Article number: 143 (2020) Cite this article

An Erratum to this article was published on 04 February 2022

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A preprint version of the article is available at arXiv.

Abstract

We present a novel method to combine QCD calculations at next-to-next-to-leading order (NNLO) with parton shower (PS) simulations, that can be applied to the production of heavy systems in hadronic collisions, such as colour singlets or a \( t\overline{t} \) pair. The NNLO corrections are included by connecting the MiNLO′ method with transverse- momentum resummation, and they are calculated at generation time without any additional reweighting, making the algorithm considerably efficient. Moreover, the combination of different jet multiplicities does not require any unphysical merging scale, and the matching preserves the structure of the leading logarithmic corrections of the Monte Carlo simulation for parton showers ordered in transverse momentum. We present proof-of-concept applications to hadronic Higgs production and the Drell-Yan process at the LHC.

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Authors and Affiliations

  1. Theoretical Physics Department, CERN, CH-1211, 23, Geneva, Switzerland

    Pier Francesco Monni, Emanuele Re & Marius Wiesemann

  2. Università di Milano - Bicocca and INFN, Sezione di Milano – Bicocca, Piazza della Scienza 3, 20126, Milano, Italy

    Paolo Nason

  3. LAPTh, Université Grenoble Alpes, Université Savoie Mont Blanc, CNRS, 74940, Annecy, France

    Emanuele Re

  4. Max-Planck-Institut für Physik, Föhringer Ring 6, 80805, München, Germany

    Marius Wiesemann & Giulia Zanderighi

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  1. Pier Francesco Monni
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  2. Paolo Nason
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Correspondence to Marius Wiesemann.

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Monni, P.F., Nason, P., Re, E. et al. MiNNLOPS: a new method to match NNLO QCD to parton showers. J. High Energ. Phys. 2020, 143 (2020). https://doi.org/10.1007/JHEP05(2020)143

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Keywords

  • Perturbative QCD
  • Resummation