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Quark mass effects in Higgs production

  • Michał Czakon,
  • Felix Eschment,
  • Marco Niggetiedt,
  • Rene Poncelet,
  • Tom Schellenberger

摘要

We examine the effect of finite top- and bottom-quark masses on the Higgs production cross section in the gluon-gluon fusion channel. We employ both MS ¯ \( \overline{\textrm{MS}} \) and on-shell renormalisation for the quark masses and provide a thorough comparison. Furthermore, we explore alternative treatments of quark masses, in particular in the four-flavour scheme, and investigate their impact on the cross section. Our work also presents novel predictions for differential cross sections in the Higgs rapidity. The results lead to a significant reduction of scale uncertainties, and our analysis enables us to offer well-grounded recommendations for future research in this area.