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<p>We implement the recently-calculated analytic expressions for the next-to-leading order QCD corrections to <i>gg</i> → <i>ZH</i> in ggxy. This provides a flexible framework for investigating partonic and hadronic cross sections for various top quark mass renormalization schemes. We augment the <i>Z</i> boson with leptonic decays, including spin correlations and off-shell effects, and furthermore provide an interface to POWHEG. This enables simulations with parton showers, performed using Pythia.</p>

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gg → ZH at NLO matched to parton showers with ggxy and POWHEG

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年7月16日

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  • Joshua Davies,
  • Kay Schönwald,
  • Matthias Steinhauser,
  • Daniel Stremmer

摘要

We implement the recently-calculated analytic expressions for the next-to-leading order QCD corrections to gg → ZH in ggxy. This provides a flexible framework for investigating partonic and hadronic cross sections for various top quark mass renormalization schemes. We augment the Z boson with leptonic decays, including spin correlations and off-shell effects, and furthermore provide an interface to POWHEG. This enables simulations with parton showers, performed using Pythia.