Search for "padding-size-4-x display--inline-block" style="background: var(--highlight-yellow); color: inherit;">tt¯ resonances in fully hadronic final states in "padding-size-4-x display--inline-block" style="background: var(--highlight-yellow); color: inherit;">pp collisions at √s = 13 TeV with the ATLAS detector

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dc.contributor.authorAad, G.
dc.contributor.authorAbbott, B.
dc.contributor.authorAbbott, D.C.
dc.contributor.authorAbed Abud, A.
dc.contributor.authorAbeling, K.
dc.contributor.authorAbhayasinghe, D.K.
dc.contributor.authorAbidi, S.H.
dc.contributor.authorAbouZeid, O.S.
dc.contributor.authorAbraham, N.L.
dc.contributor.authorAbramowicz, H.
dc.contributor.authorAbreu, H.
dc.contributor.authorAbulaiti, Y.
dc.date.accessioned2021-07-26T15:42:22Z
dc.date.available2021-07-26T15:42:22Z
dc.date.issued2020-10
dc.descriptionIndexación: Scopus.es
dc.description.abstractThis paper presents a search for new heavy particles decaying into a pair of top quarks using 139 fb−1 of proton-proton collision data recorded at a centre-of-mass energy of s = 13 TeV with the ATLAS detector at the Large Hadron Collider. The search is performed using events consistent with pair production of high-transverse-momentum top quarks and their subsequent decays into the fully hadronic final states. The analysis is optimized for resonances decaying into a "padding-size-4-x display--inline-block" style="background: var(--highlight-yellow); color: inherit;">tt¯ pair with mass above 1.4 TeV, exploiting a dedicated multivariate technique with jet substructure to identify hadronically decaying top quarks using large-radius jets and evaluating the background expectation from data. No significant deviation from the background prediction is observed. Limits are set on the production cross-section times branching fraction for the new Z′ boson in a topcolor-assisted-technicolor model. The Z′ boson masses below 3.9 and 4.7 TeV are excluded at 95% confidence level for the decay widths of 1% and 3%, respectively. [Figure not available: see fulltext.] © 2020, The Author(s).es
dc.description.urihttps://link-springer-com.recursosbiblioteca.unab.cl/article/10.1007/JHEP10(2020)061
dc.identifier.citationJournal of High Energy PhysicsOpen AccessVolume 2020, Issue 101 October 2020 Article number 61es
dc.identifier.doi10.1007/JHEP10(2020)061
dc.identifier.issn1029-8479
dc.identifier.urihttp://repositorio.unab.cl/xmlui/handle/ria/19501
dc.language.isoenes
dc.publisherSpringer Science and Business Media Deutschland GmbHes
dc.rights.licenseAttribution 4.0 International (CC BY 4.0)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectBeyond Standard Modeles
dc.subjectHadron-Hadron scattering (experiments)es
dc.subjectHeavy quark productiones
dc.subjectJet substructurees
dc.subjectJetses
dc.titleSearch for "padding-size-4-x display--inline-block" style="background: var(--highlight-yellow); color: inherit;">tt¯ resonances in fully hadronic final states in "padding-size-4-x display--inline-block" style="background: var(--highlight-yellow); color: inherit;">pp collisions at √s = 13 TeV with the ATLAS detectores
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