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arxiv: 1605.05761 · v1 · pith:XTK4B7BSnew · submitted 2016-05-18 · ✦ hep-ph · hep-ex

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 This is my paper
classification ✦ hep-ph hep-ex
keywords scalarcrosssectionbosoncouplescp-evenfusiongluon
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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 cross section 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.

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