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Differential Higgs boson pair production at next-to-next-to-leading order in QCD

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posted on 2023-06-10, 05:13 authored by Daniel de Florian, Massimiliano Grazzini, Catalin Hanga, Stefan Kallweit, Jonas LindertJonas Lindert, Philipp Maierhöfer, Javier Mazzitelli, Dirk Rathlev
We report on the first fully differential calculation for double Higgs boson production through gluon fusion in hadron collisions up to next-to-next-to-leading order (NNLO) in QCD perturbation theory. The calculation is performed in the heavy-top limit of the Standard Model, and in the phenomenological results we focus on pp collisions at s=14 TeV. We present differential distributions through NNLO for various observables including the transverse-momentum and rapidity distributions of the two Higgs bosons. NNLO corrections are at the level of 10%-25% with respect to the next-to-leading order (NLO) prediction with a residual scale uncertainty of 5%-15% and an overall mild phase-space dependence. Only at NNLO the perturbative expansion starts to converge yielding overlapping scale uncertainty bands between NNLO and NLO in most of the phase-space. The calculation includes NLO predictions for pp ? HH + jet + X. Corrections to the corresponding distributions exceed 50% with a residual scale dependence of 20%-30%.

History

Publication status

  • Published

File Version

  • Published version

Journal

Journal of High Energy Physics

ISSN

1126-6708

Publisher

Springer Science and Business Media LLC

Volume

2016

Page range

a151 1-18

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2022-10-25

First Open Access (FOA) Date

2022-10-25

First Compliant Deposit (FCD) Date

2022-10-23

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