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Angular distributions in t(t)over-barH(H -> b(b)over-bar) reconstructed events at the LHC

2015-08-26Journal article Restricted access
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dc.contributor.authorSantos, S. P. Amor dos
dc.contributor.authorAraque, J. P.
dc.contributor.authorCantrill, R.
dc.contributor.authorCastro, N. F.
dc.contributor.authorFiolhais, M. C. N.
dc.contributor.authorFrederix, R.
dc.contributor.authorGonçalo, R.
dc.contributor.authorMartins, R.
dc.contributor.authorSantos, R.
dc.contributor.authorSilva, J.
dc.contributor.authorOnofre, A.
dc.contributor.authorPeixoto, H.
dc.contributor.authorReigoto, A.
dc.date.accessioned2016-03-15T16:00:20Z
dc.date.available2016-03-15T16:00:20Z
dc.date.issued2015-08-26
dc.description.abstractThe associated production of a Higgs boson and a top-quark pair, t (t) over barH, in proton-proton collisions is addressed in this paper for a center of mass energy of 13 TeV at the LHC. Dileptonic final states of t (t) over barH events with two oppositely charged leptons and four jets from the decays t -> bW(+) -> bl(+)v(l), (t) over bar -> (b) over barW(-) -> (b) over barl(-)(v) over bar (l) and h -> b (b) over bar are used. Signal events, generated with MadGraph5_aMC@NLO, are fully reconstructed by applying a kinematic fit. New angular distributions of the decay products as well as angular asymmetries are explored in order to improve discrimination of t (t) over barH signal events over the dominant irreducible background contribution, t (t) over barb (b) over bar. Even after the full kinematic fit reconstruction of the events, the proposed angular distributions and asymmetries are still quite different in the t (t) over barH signal and the dominant background (t (t) over barb (b) over bar).pt_PT
dc.identifier.citationSANTOS, S. P. Amor dos;[et al.] - Angular distributions in t(t)over-barH(H -> b(b)over-bar) reconstructed events at the LHC. Physical Review. D. ISSN. 1550-7998. Vol. 92, N.º 3 (2015), pp. 034021-1-034021-10pt_PT
dc.identifier.doi10.1103/PhysRevD.92.034021pt_PT
dc.identifier.issn1550-7998
dc.identifier.issn1550-2368
dc.identifier.urihttp://hdl.handle.net/10400.21/5866
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherAMER PHYSICAL SOCpt_PT
dc.relation.ispartofseries034021;
dc.relation.publisherversionhttp://journals.aps.org/prd/abstract/10.1103/PhysRevD.92.034021pt_PT
dc.subjectModel HIGGS-BOSONpt_PT
dc.subjectAtlas detectorpt_PT
dc.subjectTop quarkspt_PT
dc.subjectMassless particlespt_PT
dc.subjectBroken symmetriespt_PT
dc.subjectMadanalysis 5pt_PT
dc.subjectAssociationpt_PT
dc.subjectSearchpt_PT
dc.subjectCollisionspt_PT
dc.subjectNLOpt_PT
dc.titleAngular distributions in t(t)over-barH(H -> b(b)over-bar) reconstructed events at the LHCpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue3pt_PT
oaire.citation.volume92pt_PT
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT

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