NLO predictions for Higgs boson pair production with full top quark mass dependence matched to parton showers

A bstract We present the first combination of NLO QCD matrix elements for di-Higgs production, retaining the full top quark mass dependence, with a parton shower. Results are provided within both the POWHEG-BOX and MadGraph5_aMC@NLO Monte Carlo frameworks. We assess in detail the theoretical uncerta...

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Bibliographic Details
Published in:The journal of high energy physics 2017-08, Vol.2017 (8), p.1-26, Article 88
Main Authors: Heinrich, G., Jones, S.P., Kerner, M., Luisoni, G., Vryonidou, E.
Format: Article
Language:English
Subjects:
Classical and Quantum Gravitation
Elementary Particles
High energy physics
Monte Carlo simulation
NLO Computations
Pair production
Physics
Physics and Astronomy
QCD Phenomenology
Quantum chromodynamics
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Quantum theory
Quarks
Regular Article - Theoretical Physics
Relativity Theory
Showers
String Theory
Transverse momentum
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Summary:A bstract We present the first combination of NLO QCD matrix elements for di-Higgs production, retaining the full top quark mass dependence, with a parton shower. Results are provided within both the POWHEG-BOX and MadGraph5_aMC@NLO Monte Carlo frameworks. We assess in detail the theoretical uncertainties and provide differential results. We find that, as expected, the shower effects are relatively large for observables like the transverse momentum of the Higgs boson pair, which are sensitive to extra radiation. However, these shower effects are still much smaller than the differences between the Born-improved HEFT approximation and the full NLO calculation in the tails of the distributions.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP08(2017)088