| Article | |
| Report number | arXiv:1907.06408 ; CERN-TH-2019-103 ; MPP-2019-128 ; P3H-19-015 ; TTP19-018 ; ZU-TH 34/19 |
| Title | Double Higgs boson production at NLO: combining the exact numerical result and high-energy expansion |
| Author(s) | Davies, Joshua (KIT, Karlsruhe, TTP) ; Heinrich, Gudrun (Munich, Max Planck Inst.) ; Jones, Stephen P. (CERN) ; Kerner, Matthias (Zurich U.) ; Mishima, Go (KIT, Karlsruhe, TTP ; KIT, Karlsruhe, IKP) ; Steinhauser, Matthias (KIT, Karlsruhe, TTP) ; Wellmann, David (KIT, Karlsruhe, TTP) |
| Publication | 2019-11-05 |
| Imprint | 2019-07-15 |
| Number of pages | 21 |
| In: | JHEP 1911 (2019) 024 |
| DOI | 10.1007/JHEP11(2019)024 |
| Subject category | hep-ph ; Particle Physics - Phenomenology |
| Abstract | We consider the next-to-leading order QCD corrections to Higgs boson pair production, using our recent calculation of the form factors in the high-energy limit. We compute the virtual corrections to the partonic cross section, applying Pad\'e approximations to extend the range of validity of the high-energy expansion. This enables us to compare to the exact numerical calculation in a significant part of the phase space and allows us to extend the virtual matrix element grid, based on the exact numerical calculation, to larger values of the (partonic) transverse momentum of the Higgs boson, which is important for boosted Higgs studies. Improved predictions for hadron colliders with centre-of-mass energies of $14\ \mathrm{TeV}$ and $100\ \mathrm{TeV}$ are presented. The updated grid is made publicly available. |
| Copyright/License | preprint: (License: arXiv nonexclusive-distrib 1.0) publication: © 2019-2025 Authors (License: CC-BY-4.0) |
Corresponding record in: Inspire
Record created 2019-07-18, last modified 2021-11-13
PDF