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<p>We compute three-loop virtual corrections to the associated production of a Higgs boson with a <i>Z</i> boson in the large-<i>m</i><sub><i>t</i></sub> limit. We describe in detail the application of the asymptotic expansion and provide, for all form factors, analytic results for the first three terms in the 1/<i>m</i><sub><i>t</i></sub> expansion. We also provide numerical routines implemented in the C++ library ggxy.</p>

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Three-loop corrections to gg → ZH in the large top quark mass limit

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年2月18日

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

摘要

We compute three-loop virtual corrections to the associated production of a Higgs boson with a Z boson in the large-mt limit. We describe in detail the application of the asymptotic expansion and provide, for all form factors, analytic results for the first three terms in the 1/mt expansion. We also provide numerical routines implemented in the C++ library ggxy.