Search for top squarks in events with a Higgs or Z boson using 139 fb−1 of pp collision data at √s=13 TeV with the ATLAS detector

dc.creatorAlonso, Francisco
dc.creatorArduh, Francisco Anuar
dc.creatorDova, María Teresa
dc.creatorHoya, Joaquín
dc.creatorMonticelli, Fernando Gabriel
dc.creatorOrellana, Gonzalo Enrique
dc.creatorWahlberg, Hernán Pablo
dc.creatorThe ATLAS Collaboration
dc.date2020-11-23
dc.date2021-10-18T16:36:47Z
dc.date.accessioned2023-07-15T03:16:23Z
dc.date.available2023-07-15T03:16:23Z
dc.identifierhttp://sedici.unlp.edu.ar/handle/10915/126823
dc.identifierissn:1434-6044
dc.identifierissn:1434-6052
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7465083
dc.descriptionThis paper presents a search for direct top squark pair production in events with missing transverse momentum plus either a pair of jets consistent with Standard Model Higgs boson decay into b-quarks or a same-flavour oppositesign dilepton pair with an invariant mass consistent with a Z boson. The analysis is performed using the proton–proton collision data at √s = 13 TeV collected with the ATLAS detector during the LHC Run-2, corresponding to an integrated luminosity of 139 fb−1. No excess is observed in the data above the Standard Model predictions. The results are interpreted in simplified models featuring direct production of pairs of either the lighter top squark (t ˜ 1) or the heavier top squark (t ˜ 2), excluding at 95% confidence level t ˜ 1 and t ˜ 2 masses up to about 1220 and 875 GeV, respectively.
dc.descriptionLa lista completa de autores puede verse al final del archivo asociado.
dc.descriptionInstituto de Física La Plata
dc.formatapplication/pdf
dc.languageen
dc.rightshttp://creativecommons.org/licenses/by/4.0/
dc.rightsCreative Commons Attribution 4.0 International (CC BY 4.0)
dc.subjectFísica
dc.subjectParticle physics
dc.subjectSupersymmetry
dc.subjectPhysics
dc.subjectCollision
dc.subjectHiggs boson
dc.subjectTransverse momentum
dc.subjectAtlas detector
dc.subjectPair production
dc.subjectStandard model
dc.titleSearch for top squarks in events with a Higgs or Z boson using 139 fb−1 of pp collision data at √s=13 TeV with the ATLAS detector
dc.typeArticulo
dc.typeArticulo


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