Improved parton showers at large transverse momenta

Richard Corke, Torbjörn Sjöstrand

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Several methods to improve the parton-shower description of hard processes by an injection of matrix-element-based information have been presented over the years. In this article we study (re)weighting schemes for the first/hardest emission. One objective is to provide a consistent matching of the POWHEG next-to-leading order generator to the Pythia shower algorithms. Another is to correct the default behaviour of these showers at large transverse momenta, based on a comparison with real-emission matrix elements.
    Original languageEnglish
    Pages (from-to)1-18
    JournalEuropean Physical Journal C. Particles and Fields
    Volume69
    Issue number1-2
    DOIs
    Publication statusPublished - 2010

    Subject classification (UKÄ)

    • Subatomic Physics

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