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Search for tb Resonances in Proton-Proton Collisions at root s=7 TeV with the ATLAS Detector

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Search for tb Resonances in Proton-Proton Collisions at root 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	2014-06-18T12:01:31Z
dc.date.available	2014-06-18T12:01:31Z
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 Search for tb Resonances in Proton-Proton Collisions at root s=7 TeV with the ATLAS Detector Physical Review Letters 109 08-081801 1 19
dc.identifier.uri	http://hdl.handle.net/10550/36231
dc.description.abstract	This Letter presents a search for tb resonances in 1.04 fb(-1) of LHC proton-proton collision data collected by the ATLAS detector at a center-of-mass energy of 7 TeV. Events with a lepton, missing transverse momentum, and two jets are selected and the invariant mass of the corresponding final state is reconstructed. The search exploits the shape of the tb invariant mass distribution compared to the expected standard model backgrounds. The model of a right-handed W'(R) with standard model-like couplings is chosen as the benchmark model for this search. No statistically significant excess of events is observed in the data, and upper limits on the cross section times the branching ratio of W'(R) resonances at 95% C.L. lie in the range of 6.1-1.0 pb for W'(R) masses ranging from 0.5 to 2.0 TeV. These limits are translated into a lower bound on the allowed right-handed W'(R) mass, giving mW'(R) > 1.13 TeV at 95% C.L.
dc.relation.ispartof	Physical Review Letters, 2012, vol. 109, num. 08-081801, p. 1-19
dc.subject	Partícules (Física nuclear)
dc.subject	Detectors de radiació
dc.subject	Col·lisions (Física nuclear)
dc.title	Search for tb Resonances in Proton-Proton Collisions at root s=7 TeV with the ATLAS Detector
dc.type	journal article	es_ES
dc.date.updated	2014-06-18T12:01:31Z
dc.identifier.doi	10.1103/PhysRevLett.109.081801
dc.identifier.idgrec	083383
dc.rights.accessRights	open access	es_ES
dc.identifier.url	10.1103/PhysRevLett.109.081801