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

被引：0
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作者：
Charalampos Anastasiou
Claude Duhr
Falko Dulat
Elisabetta Furlan
Thomas Gehrmann
Franz Herzog
Achilleas Lazopoulos
Bernhard Mistlberger
机构：
[1] ETH Zürich,Institute for Theoretical Physics
[2] CERN,Theoretical Physics department
[3] Université catholique de Louvain,Center for Cosmology, Particle Physics and Phenomenology (CP3)
[4] University of California,Kavli Institute for Theoretical Physics
[5] Physik-Institut,undefined
[6] Universität Zürich,undefined
[7] Nikhef,undefined
来源：
Journal of High Energy Physics | / 2016卷
关键词：
QCD Phenomenology;
D O I：
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摘要：
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.
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