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

Autor:	Baglio, Julien, Campanario, Francisco, Glaus, Seraina, Mühlleitner, Margarete, Spira, Michael, Streicher, Juraj
Rok vydání:	2018
Předmět:	High Energy Physics - Phenomenology High Energy Physics - Experiment
Zdroj:	Eur. Phys. J. C 79 (2019) 459
Druh dokumentu:	Working Paper
DOI:	10.1140/epjc/s10052-019-6973-3
Popis:	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. Comment: 8 pages double column, 2 figures. V2: identical to published version
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1811.05692 Zobrazit plný text záznamu View this record from Arxiv