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Gluon fusion into Higgs pairs at NLO QCD and the top mass scheme

Baglio, J.; Campanario, F.; Glaus, S.; Mühlleitner, M.; Spira, M.; Streicher, J.

Abstract:
We present the calculation of the full next-to-leading order (NLO) QCD corrections to Higgs boson pair production via gluon fusion at the LHC, including the exact top-mass dependence in the two-loop virtual and one-loop real corrections. This is the first independent cross-check of the NLO QCD corrections presented in the literature before. Our calculation relies on numerical integrations of Feynman integrals, stabilised with integration-by-parts and a Richardson extrapolation to the narrow width approximation. We present results for the total cross section as well as for the invariant Higgs-pair-mass distribution at the LHC, including for the first time a study of the uncertainty due to the scheme and scale choice for the top mass in the loops.

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Verlagsausgabe §
DOI: 10.5445/IR/1000095338
Veröffentlicht am 03.06.2019
Originalveröffentlichung
DOI: 10.1140/epjc/s10052-019-6973-3
Coverbild
Zugehörige Institution(en) am KIT Institut für Theoretische Physik (ITP)
Institut für Kernphysik (IKP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2019
Sprache Englisch
Identifikator ISSN: 1434-6044, 1434-6052
KITopen-ID: 1000095338
HGF-Programm 51.01.01 (POF III, LK 01)
Erschienen in The European physical journal / C
Band 79
Heft 6
Seiten Article: 459
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
Vorab online veröffentlicht am 30.05.2019
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