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dc.contributor.authorAaltonen, Timo Antero
dc.contributor.authorAmerio, Silvia
dc.contributor.authorAmidei, Dante
dc.contributor.authorAnastassov, Anton
dc.contributor.authorAnnovi, Alberto
dc.contributor.authorAntos, Jaroslav
dc.contributor.authorApollinari, Giorgio
dc.contributor.authorAppel, Jeffrey A.
dc.contributor.authorCasal Laraña, Bruno
dc.contributor.authorCuevas Maestro, Francisco Javier
dc.contributor.authorGómez Gramuglio, Gervasio
dc.contributor.authorPalencia Cortezón, Enrique
dc.contributor.authorRodrigo Anoro, Teresa 
dc.contributor.authorRuiz Jimeno, Alberto 
dc.contributor.authorScodellaro, Luca
dc.contributor.authorVila Álvarez, Iván
dc.contributor.authorVilar Cortabitarte, Rocío 
dc.contributor.authorVizán García, Jesús Manuel
dc.contributor.authorApresyan, Artur
dc.contributor.authorÁlvarez González, Bárbara
dc.contributor.otherUniversidad de Cantabriaes_ES
dc.date.accessioned2013-06-04T06:59:26Z
dc.date.available2013-06-04T06:59:26Z
dc.date.issued2011-07-01
dc.identifier.issn1550-7998
dc.identifier.issn1550-2368
dc.identifier.urihttp://hdl.handle.net/10902/2258
dc.description.abstractWe report on a search for anomalous production of Z boson pairs through a massive resonance decay in data corresponding to 2.5–2.9  fb-1 of integrated luminosity in pp̅ collisions at √s=1.96  TeV using the CDF II detector at the Fermilab Tevatron. This analysis, with more data and channels where the Z bosons decay to muons or jets, supersedes the 1.1  fb-1 four-electron channel result previously published by CDF. In order to maintain high efficiency for muons, we use a new forward tracking algorithm and muon identification requirements optimized for these high signal-to-background channels. Predicting the dominant backgrounds in each channel entirely from sideband data samples, we observe four-body invariant mass spectra above 300  GeV/c2 that are consistent with background. We set limits using the acceptance for a massive graviton resonance that are 7–20 times stronger than the previously published direct limits on resonant ZZ diboson production.es_ES
dc.format.extent18 p.es_ES
dc.language.isoenges_ES
dc.publisherAmerican Physical Societyes_ES
dc.rights© 2011 American Physical Societyes_ES
dc.sourcePhysical review. D, Particles, fields, gravitation, and cosmology, vol. 83, iss. 11, art. num. 112008 (2011)es_ES
dc.titleSearch for new heavy particles decaying to ZZ→llll, lljj in pp̅ collisions at √s=1.96  TeVes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.relation.publisherVersionhttp://dx.doi.org/10.1103/PhysRevD.83.112008es_ES
dc.rights.accessRightsopenAccesses_ES
dc.identifier.DOI10.1103/PhysRevD.83.112008
dc.type.versionpublishedVersiones_ES


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