Observation of the associated production of a top quark and a Z boson 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

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.accessioned2021-07-14T19:04:57Z
dc.date.available2021-07-14T19:04:57Z
dc.date.issued2020-07
dc.descriptionIndexación: Scopuses
dc.description.abstractSingle top-quark production in association with a Z boson, where the Z boson decays to a pair of charged leptons, is measured in the trilepton channel. The proton-proton collision data collected by the ATLAS experiment from 2015 to 2018 at a centre-of-mass energy of 13 TeV are used, corresponding to an integrated luminosity of 139 fb−1. Events containing three isolated charged leptons (electrons or muons) and two or three jets, one of which is identified as containing a b-hadron, are selected. The main backgrounds are from tt¯ Z and diboson production. Neural networks are used to improve the background rejection and extract the signal. The measured cross-section for tℓ+ℓ−q production, including non-resonant dilepton pairs with mℓ+ℓ−> 30 GeV, is 97 ± 13 (stat.) ± 7 (syst.) fb, consistent with the Standard Model prediction. [Figure not available: see fulltext.] © 2020, The Author(s).es
dc.description.urihttps://link-springer-com.recursosbiblioteca.unab.cl/content/pdf/10.1007/JHEP07(2020)124.pdf
dc.identifier.citationJournal of High Energy Physics Volume 2020, Issue 71 July 2020 Article number 124es
dc.identifier.doi10.1007/JHEP07(2020)124
dc.identifier.issn1126-6708
dc.identifier.urihttp://repositorio.unab.cl/xmlui/handle/ria/19384
dc.language.isoenes
dc.publisherSpringeres
dc.subjectHadron-Hadron scattering (experiments)es
dc.titleObservation of the associated production of a top quark and a Z boson 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
dc.typeArtículoes
Archivos
Bloque original
Mostrando 1 - 1 de 1
Cargando...
Miniatura
Nombre:
Aad_G_Observation_of_The_associated_production.pdf
Tamaño:
834.29 KB
Formato:
Adobe Portable Document Format
Descripción:
TEXTO COMPLETO EN INGLES
Bloque de licencias
Mostrando 1 - 1 de 1
No hay miniatura disponible
Nombre:
license.txt
Tamaño:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descripción: