Higgs boson gluon-fusion production beyond threshold in N3LO QCD

被引：0
作者：
Charalampos Anastasiou
Claude Duhr
Falko Dulat
Elisabetta Furlan
Thomas Gehrmann
Franz Herzog
Bernhard Mistlberger
机构：
[1] ETH Zürich,Institute for Theoretical Physics
[2] Université catholique de Louvain,Center for Cosmology, Particle Physics and Phenomenology (CP3)
[3] Fermilab,Physik
[4] Universität Zürich,Institut
[5] Nikhef,undefined
[6] CERN Theory Division,undefined
来源：
Journal of High Energy Physics | / 2015卷
关键词：
QCD Phenomenology; NLO Computations;
D O I：
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摘要：
In this article, we compute the gluon fusion Higgs boson cross-section at N3LO through the second term in the threshold expansion. This calculation constitutes a major milestone towards the full N3LO cross section. Our result has the best formal accuracy in the threshold expansion currently available, and includes contributions from collinear regions besides subleading corrections from soft and hard regions, as well as certain logarithmically enhanced contributions for general kinematics. We use our results to perform a critical appraisal of the validity of the threshold approximation at N3LO in perturbative QCD.
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