ZH$ production in gluon fusion: two-loop amplitudes with full top quark mass dependence

JHEP 03 (2021) 125 We present results for the two-loop helicity amplitudes entering the NLO QCD corrections to the production of a Higgs boson in association with a $Z$-boson in gluon fusion. The two-loop integrals, involving massive top quarks, are calculated numerically. Results for the interferen...

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Main Authors Chen, Long, Heinrich, Gudrun, Jones, Stephen P, Kerner, Matthias, Klappert, Jonas, Schlenk, Johannes
Format Journal Article
LanguageEnglish
Published 24.11.2020
Subjects
Physics - High Energy Physics - Phenomenology
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Summary:JHEP 03 (2021) 125 We present results for the two-loop helicity amplitudes entering the NLO QCD corrections to the production of a Higgs boson in association with a $Z$-boson in gluon fusion. The two-loop integrals, involving massive top quarks, are calculated numerically. Results for the interference of the finite part of the two-loop amplitudes with the Born amplitude are shown as a function of the two kinematic invariants on which the amplitudes depend.
Bibliography:ZU-TH 45/20, CERN-TH-2020-199, IPPP/20/57, P3H-20-076, KA-TP-21-2020, TTK-20-42, PSI-PR-20-21
DOI:10.48550/arxiv.2011.12325