Reconstruction of top-quark mass effects in Higgs pair production and other gluon-fusion processes

被引：0
|
作者：
Ramona Gröber
Andreas Maier
Thomas Rauh
机构：
[1] University of Durham,Institute for Particle Physics Phenomenology
来源：
Journal of High Energy Physics | / 2018卷
关键词：
Effective Field Theories; Higgs Physics; Perturbative QCD;
D O I：
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摘要：
We propose a novel method for the treatment of top-quark mass effects in the production of H(∗), HH, HZ and ZZ final states in gluon fusion. We show that it is possible to reconstruct the full top-quark mass dependence of the virtual amplitudes from the corresponding large-mt expansion and the non-analytic part of the amplitude near the top-quark threshold ŝ = 4mt2 with a Padé ansatz. The reliability of our method is clearly demonstrated by a comparison with the recent NLO result for Higgs pair production with full top-quark mass dependence.
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