[1401.7340] Higgs pair production at the LHC with NLO and parton-shower effects

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High Energy Physics - Phenomenology

arXiv:1401.7340 (hep-ph)
[Submitted on 28 Jan 2014 (v1), last revised 20 Mar 2014 (this version, v2)]

Title:Higgs pair production at the LHC with NLO and parton-shower effects

Authors:R. Frederix, S. Frixione, V. Hirschi, F. Maltoni, O. Mattelaer, P. Torrielli, E. Vryonidou, M. Zaro
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Abstract:We present predictions for the SM-Higgs-pair production channels of relevance at the LHC: gluon-gluon fusion, VBF, and top-pair, W, Z and single-top associated production. All these results are at the NLO accuracy in QCD, and matched to parton showers by means of the MC@NLO method; hence, they are fully differential. With the exception of the gluon-gluon fusion process, for which a special treatment is needed in order to improve upon the infinite-top-mass limit, our predictions are obtained in a fully automatic way within the publicly available MadGraph5_aMC@NLO framework. We show that for all channels in general, and for gluon-gluon fusion and top-pair associated production in particular, NLO corrections reduce the theoretical uncertainties, and are needed in order to arrive at reliable predictions for total rates as well as for distributions.
Comments: 11 pages, 7 figures, version accepted for publication on PLB
Subjects: High Energy Physics - Phenomenology (hep-ph)
Report number: CERN-PH-TH/2014-014, CP3-14-07, ZU-TH03/14, LPN14-055
Cite as: arXiv:1401.7340 [hep-ph]
  (or arXiv:1401.7340v2 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.1401.7340
Journal reference: Phys.Lett. B732 (2014) 142-149
Related DOI: https://doi.org/10.1016/j.physletb.2014.03.026

Submission history

From: Marco Zaro [view email]
[v1] Tue, 28 Jan 2014 21:05:23 UTC (138 KB)
[v2] Thu, 20 Mar 2014 16:48:43 UTC (138 KB)
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