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

Chen, Long and Heinrich, Gudrun and Jones, Stephen P. and Kerner, Matthias and Klappert, Jonas and Schlenk, Johannes (2021) 'ZH production in gluon fusion: two-loop amplitudes with full top quark mass dependence.', Journal of high energy physics., 2021 .


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.

Item Type:Article
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Publisher statement:This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
Date accepted:25 January 2021
Date deposited:13 April 2021
Date of first online publication:11 March 2021
Date first made open access:13 April 2021

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