A search for t[bar over t] resonances in lepton+jets events with highly boosted top quarks collected in pp collisions at √s = 7 TeV with the ATLAS detector
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A search for t[bar over t] resonances in lepton+jets events with highly boosted top quarks collected in pp collisions at √s = 7 TeV with the ATLAS detector

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A search for t[bar over t] resonances in lepton+jets events with highly boosted top quarks collected in pp collisions at √s = 7 TeV with the ATLAS detector

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dc.contributor.author ATLAS Collaboration
dc.contributor.author Mitsou, Vasiliki
dc.contributor.author Fuster Verdú, Juan A.
dc.contributor.author Ferrer Soria, Antonio
dc.contributor.author Castillo Giménez, María Victoria
dc.contributor.author Cabrera Urbán, Susana
dc.contributor.author García García, Carmen
dc.contributor.author Higón Rodríguez, Emilio
dc.contributor.author Martí García, Salvador
dc.contributor.author Ros Martínez, Eduardo
dc.contributor.author González de la Hoz, Santiago
dc.contributor.author Salt Cairols, José
dc.contributor.author Valls Ferrer, Juan Antonio
dc.contributor.author Kaci, Mohammed
dc.contributor.author Fiorini, Luca
dc.contributor.author Hernández Jiménez, Yesenia
dc.contributor.author Lacasta Llácer, Carlos
dc.contributor.author Villaplana Pérez, Miguel
dc.date.accessioned 2014-07-23T10:41:28Z
dc.date.available 2014-07-23T10:41:28Z
dc.date.issued 2012
dc.identifier.uri http://hdl.handle.net/10550/37277
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 root s = 7 TeV collected in 2011 with the ATLAS experiment at the Large Hadron Collider. This analysis of the lepton+jets final state is specifically designed for the particular topology that arises from the decay of highly boosted top quarks. The observed t (t) over bar invariant mass spectrum is found to be compatible with the Standard Model prediction and 95% credibility level upper limits are derived on the t (t) over bar 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.
dc.language.iso eng
dc.relation.ispartof Journal of High Energy Physics, 2012, vol. 2012, num. 09-041, p. 1-45
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source ATLAS Collaboration Mitsou, Vasiliki Fuster Verdú, Juan A. Ferrer Soria, Antonio Castillo Giménez, María Victoria Cabrera Urbán, Susana García García, Carmen Higón Rodríguez, Emilio Martí García, Salvador Ros Martínez, Eduardo González de la Hoz, Santiago Salt Cairols, José Valls Ferrer, Juan Antonio Kaci, Mohammed Fiorini, Luca Hernández Jiménez, Yesenia Lacasta Llácer, Carlos Villaplana Pérez, Miguel 2012 A search for t[bar over t] resonances in lepton+jets events with highly boosted top quarks collected in pp collisions at √s = 7 TeV with the ATLAS detector Journal of High Energy Physics 2012 09-041 1 45
dc.subject Física nuclear
dc.subject Partícules (Física nuclear)
dc.subject Col·lisions (Física nuclear)
dc.subject Detectors de radiació
dc.title A search for t[bar over t] resonances in lepton+jets events with highly boosted top quarks collected in pp collisions at √s = 7 TeV with the ATLAS detector
dc.type info:eu-repo/semantics/article
dc.date.updated 2014-07-23T10:41:28Z
dc.identifier.doi http://dx.doi.org/10.1007/JHEP09(2012)041
dc.identifier.idgrec 083375

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