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dc.date.accessioned 2019-07-03T18:05:04Z
dc.date.available 2019-07-03T18:05:04Z
dc.date.issued 2014-01-20
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/77608
dc.description.abstract A measurement of the mass difference between top and anti-top quarks is presented. In a 4.7 fb−1 data sample of proton–proton collisions at √s = 7 TeV recorded with the ATLAS detector at the LHC, events consistent with tt ̄ production and decay into a single charged lepton final state are reconstructed. For each event, the mass difference between the top and anti-top quark candidate is calculated. A two b-tag requirement is used in order to reduce the background contribution. A maximum likelihood fit to these per-event mass differences yields Δmmtmt¯=0.67±0.61(stat)±0.41(syst) GeV, consistent with CPT invariance. en
dc.format.extent 363-379 es
dc.language en es
dc.subject top quarks es
dc.subject anti-top quarks es
dc.subject pp collisions es
dc.subject ATLAS detector es
dc.title Measurement of the mass difference between top and anti-top quarks in pp collisions at √s = 7 TeV using the ATLAS detector en
dc.type Articulo es
sedici.identifier.other https://doi.org/10.1016/j.physletb.2013.12.010 es
sedici.identifier.issn 0370-2693 es
sedici.creator.person Alconada Verzini, María Josefina es
sedici.creator.person Alonso, Francisco es
sedici.creator.person Anduaga, Xabier Sebastián es
sedici.creator.person Dova, María Teresa es
sedici.creator.person Monticelli, Fernando Gabriel es
sedici.creator.person Tripiana, Martín Fernando es
sedici.creator.corporate The ATLAS Collaboration es
sedici.description.note La lista completa de autores puede verse al final del archivo asociado. es
sedici.subject.materias Física es
sedici.description.fulltext true es
mods.originInfo.place Instituto de Física La Plata 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 Physics Letters B es
sedici.relation.journalVolumeAndIssue vol. 728 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)