On top quark mass effects to gg → ZH at NLO

Hasselhuhn, Alexander (Institut für Theoretische Teilchenphysik, Karlsruhe Institute of Technology (KIT), Wolfgang-Gaede Straße 1, Karlsruhe, D-76128, Germany) ; Luthe, Thomas (Institut für Theoretische Teilchenphysik, Karlsruhe Institute of Technology (KIT), Wolfgang-Gaede Straße 1, Karlsruhe, D-76128, Germany) ; Steinhauser, Matthias (Institut für Theoretische Teilchenphysik, Karlsruhe Institute of Technology (KIT), Wolfgang-Gaede Straße 1, Karlsruhe, D-76128, Germany)

19 January 2017

Abstract: We compute next-to-leading order QCD corrections to the process gg → ZH . In the effective-theory approach we confirm the results in the literature. We consider top quark mass corrections via an asymptotic expansion and show that there is a good convergence below the top quark threshold which describes approximately a quarter of the total cross section. Our corrections are implemented in the publicly available C++ program ggzh.


Published in: JHEP 1701 (2017) 073
Published by: Springer/SISSA
DOI: 10.1007/JHEP01(2017)073
arXiv: 1611.05881
License: CC-BY-4.0



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