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Higgs production in association with a single top quark at the LHC

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Demartin, Federico [UCL] Maltoni, Fabio [UCL]

We present a detailed study of Higgs boson production in association with a single top quark at the LHC, at next-to-leading order accuracy in QCD. We consider total and differential cross sections, at the parton level as well as by matching short distance events to parton showers, for both t-channel and s-channel production. We provide predictions relevant for the LHC at 13 TeV together with a thorough evaluation of the residual uncertainties coming from scale variation, parton distributions, strong coupling constant and heavy quark masses. In addition, for t-channel production, we compare results as obtained in the 4-flavour and 5-flavour schemes, pinning down the most relevant differences between them. Finally, we study the sensitivity to a non-standard-model relative phase between the Higgs couplings to the top quark and to the weak bosons.

Document type Article de périodique (Journal article) – Article de recherche
Access type Accès libre
Publication date 2015
Language Anglais
Journal information "European Physical Journal C. Particles and Fields" - Vol. C75, p. 267 (2015)
Peer reviewed yes
e-issn 1434-6052
Publication status Publié
Affiliation UCL - SST/IRMP - Institut de recherche en mathématique et physique
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Bibliographic reference Demartin, Federico ; Maltoni, Fabio ; et. al. Higgs production in association with a single top quark at the LHC. In: European Physical Journal C. Particles and Fields, Vol. C75, p. 267 (2015)
Permanent URL http://hdl.handle.net/2078.1/184867