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dc.date.accessioned 2019-10-08T12:56:51Z
dc.date.available 2019-10-08T12:56:51Z
dc.date.issued 2018-06-21
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/82887
dc.description.abstract The results of a search for the direct pair production of top squarks, the supersymmetric partner of the top quark, in final states with one isolated electron or muon, several energetic jets, and missing transverse momentum are reported. The analysis also targets spin-0 mediator models, where the mediator decays into a pair of dark-matter particles and is produced in association with a pair of top quarks. The search uses data from proton-proton collisions delivered by the Large Hadron Collider in 2015 and 2016 at a centre-of-mass energy of √ s=13 TeV and recorded by the ATLAS detector, corresponding to an integrated luminosity of 36 fb−1. A wide range of signal scenarios with different mass-splittings between the top squark, the lightest neutralino and possible intermediate supersymmetric particles are considered, including cases where the W bosons or the top quarks produced in the decay chain are off-shell. No significant excess over the Standard Model prediction is observed. The null results are used to set exclusion limits at 95% confidence level in several supersymmetry benchmark models. For pair-produced top-squarks decaying into top quarks, top-squark masses up to 940 GeV are excluded. Stringent exclusion limits are also derived for all other considered top-squark decay scenarios. For the spin-0 mediator models, upper limits are set on the visible cross-section. en
dc.language en es
dc.subject hadron-hadron scattering es
dc.subject top squark es
dc.subject supersymmetry es
dc.title Search for top-squark pair production in final states with one lepton, jets, and missing transverse momentum using 36 fb−1 of √s=13 TeV pp collision data with the ATLAS detector en
dc.type Articulo es
sedici.identifier.other https://doi.org/10.1007/JHEP06(2018)108 es
sedici.identifier.issn 1029-8479 es
sedici.creator.person Alconada Verzini, María Josefina es
sedici.creator.person Alonso, Francisco es
sedici.creator.person Arduh, Francisco Anuar es
sedici.creator.person Dova, María Teresa es
sedici.creator.person Hoya, Joaquín es
sedici.creator.person Monticelli, Fernando Gabriel es
sedici.creator.person Wahlberg, Hernán Pablo es
sedici.creator.person The ATLAS Collaboration es
sedici.subject.materias Ciencias Exactas es
sedici.subject.materias Física es
sedici.description.fulltext true es
mods.originInfo.place Facultad de Ciencias Exactas es
sedici.subtype Articulo es
sedici.rights.license Creative Commons Attribution 4.0 International (CC BY 4.0)
sedici.rights.uri http://creativecommons.org/licenses/by/4.0/
sedici.description.peerReview peer-review es
sedici.relation.journalTitle Journal of High Energy Physics es
sedici.relation.journalVolumeAndIssue vol. 2018, no. 6 es


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Creative Commons Attribution 4.0 International (CC BY 4.0) Except where otherwise noted, this item's license is described as Creative Commons Attribution 4.0 International (CC BY 4.0)