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dc.date.accessioned 2019-09-16T14:18:09Z
dc.date.available 2019-09-16T14:18:09Z
dc.date.issued 2012-09-13
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/81246
dc.description.abstract A search for resonant production of high-mass top-quark pairs is performed on 2.05 fb-1 of proton-proton collisions at √s = 7 TeV collected in 2011 with the ATLAS experiment at the Large Hadron Collider. This analysis of the lepton+jets nal state is speci cally designed for the particular topology that arises from the decay of highly boosted top quarks. The observed tt invariant mass spectrum is found to be compatible with the Standard Model prediction and 95% credibility level upper limits are derived on the tt production rate through new massive states. An upper limit of 0.7 pb is set on the production cross section times branching fraction of a narrow 1 TeV resonance. A Kaluza-Klein gluon with a mass smaller than 1:5 TeV is excluded. en
dc.language en es
dc.subject hadron-hadron scattering es
dc.subject top quark es
dc.subject Partículas Elementales es
dc.title A search for tt resonances in lepton+jets events with highly boosted top quarks collected in pp collisions at √s = 7 TeV with the ATLAS detector en
dc.type Articulo es
sedici.identifier.other http://dx.doi.org/10.1007/JHEP09(2012)041 es
sedici.identifier.issn 1029-8479 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 F. 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. 2012, no. 9 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)