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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.citation	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.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.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	journal article	es_ES
dc.date.updated	2014-07-23T10:41:28Z
dc.identifier.doi	10.1007/JHEP09(2012)041
dc.identifier.idgrec	083375
dc.rights.accessRights	open access	es_ES