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Journal of High Energy Physics

, 2016:37 | Cite as

CP-even scalar boson production via gluon fusion at the LHC

  • Charalampos Anastasiou
  • Claude Duhr
  • Falko Dulat
  • Elisabetta Furlan
  • Thomas Gehrmann
  • Franz Herzog
  • Achilleas Lazopoulos
  • Bernhard Mistlberger
Open Access
Regular Article - Theoretical Physics

Abstract

In view of the searches at the LHC for scalar particle resonances in addition to the 125 GeV Higgs boson, we present the cross-section for a CP-even scalar produced via gluon fusion at N3LO in perturbative QCD assuming that it couples directly to gluons in an effective theory approach. We refine our prediction by taking into account the possibility that the scalar couples to the top-quark and computing the corresponding contributions through NLO in perturbative QCD. We assess the theoretical uncertainties of the crosssection due to missing higher-order QCD effects and we provide the necessary information for obtaining the cross-section value and uncertainty from our results in specific scenarios beyond the Standard Model. We also give detailed results for the case of a 750 GeV scalar, which will be the subject of intense experimental studies.

Keywords

QCD Phenomenology 

Notes

Open Access

This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.

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Copyright information

© The Author(s) 2016

Authors and Affiliations

  • Charalampos Anastasiou
    • 1
  • Claude Duhr
    • 2
    • 3
  • Falko Dulat
    • 1
  • Elisabetta Furlan
    • 1
    • 4
  • Thomas Gehrmann
    • 5
  • Franz Herzog
    • 6
  • Achilleas Lazopoulos
    • 1
  • Bernhard Mistlberger
    • 2
  1. 1.Institute for Theoretical PhysicsETH ZürichZurichSwitzerland
  2. 2.Theoretical Physics departmentCERNGeneve 23Switzerland
  3. 3.Center for Cosmology, Particle Physics and Phenomenology (CP3)Université catholique de LouvainLouvain-La-NeuveBelgium
  4. 4.Kavli Institute for Theoretical PhysicsUniversity of CaliforniaSanta BarbaraU.S.A.
  5. 5.Physik-Institut, Universität ZürichZürichSwitzerland
  6. 6.NikhefAmsterdamThe Netherlands

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