Exact quark-mass dependence of the Higgs-gluon form factor at three loops in QCD
| Autor: | Marco Niggetiedt, Michal Czakon |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Quark
Nuclear and High Energy Physics Particle physics Higgs Physics Differential equation High Energy Physics::Lattice FOS: Physical sciences 01 natural sciences High Energy Physics - Phenomenology (hep-ph) Perturbative QCD 0103 physical sciences ddc:530 lcsh:Nuclear and particle physics. Atomic energy. Radioactivity 010306 general physics Physics Quantum chromodynamics 010308 nuclear & particles physics High Energy Physics::Phenomenology Form factor (quantum field theory) Gluon High Energy Physics - Phenomenology Amplitude Higgs boson lcsh:QC770-798 High Energy Physics::Experiment |
| Zdroj: | Journal of High Energy Physics Journal of High Energy Physics, Vol 2020, Iss 5, Pp 1-24 (2020) Journal of high energy physics : JHEP 2020(5), 149 (2020). doi:10.1007/JHEP05(2020)149 |
| DOI: | 10.1007/JHEP05(2020)149 |
| Popis: | We determine the three-loop form factor parameterising the amplitude for the production of an off-shell Higgs boson in gluon fusion in QCD with a single massive quark. The result is obtained via a numerical solution of a system of differential equation for the occurring master integrals. The solution is also used to determine the high-energy and threshold expansions of the form factor. Our findings may be used for the evaluation of virtual corrections generated by top-quark and b-quark loops in Higgs boson hadroproduction cross sections at next-to-next-to-leading order. 27 pages, 8 figures |
| Databáze: | OpenAIRE |
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