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dc.contributor.authorAaltonen, Timo Antero
dc.contributor.authorCasal Laraña, Bruno
dc.contributor.authorCuevas Maestro, Francisco Javier
dc.contributor.authorGómez Gramuglio, Gervasio
dc.contributor.authorPalencia Cortezón, José Enrique
dc.contributor.authorRuiz Jimeno, Alberto 
dc.contributor.authorScodellaro, Luca
dc.contributor.authorVilar Cortabitarte, Rocío 
dc.contributor.authorVizán García, Jesús Manuel 
dc.contributor.otherUniversidad de Cantabriaes_ES
dc.date.accessioned2018-06-13T08:11:38Z
dc.date.available2018-06-13T08:11:38Z
dc.date.issued2015-03
dc.identifier.issn1550-7998
dc.identifier.issn1550-2368
dc.identifier.otherFPA2014-55295-C3-1-R
dc.identifier.otherFPA 2011-28694-C02-01
dc.identifier.urihttp://hdl.handle.net/10902/13858
dc.description.abstractProduction of the Y(1S) meson in association with a vector boson is a rare process in the standard model with a cross section predicted to be below the sensitivity of the Tevatron. Observation of this process could signify contributions not described by the standard model or reveal limitations with the current nonrelativistic quantum-chromodynamic models used to calculate the cross section. We perform a search for this process using the full Run II data set collected by the CDF II detector corresponding to an integrated luminosity of 9.4??fb-1. The search considers the ??µµ decay and the decay of the W and Z bosons into muons and electrons. In these purely leptonic decay channels, we observe one ?W candidate with an expected background of 1.2±0.5 events, and one ?Z candidate with an expected background of 0.1±0.1 events. Both observations are consistent with the predicted background contributions. The resulting upper limits on the cross section for ?+W/Z production are the most sensitive reported from a single experiment and place restrictions on potential contributions from non-standard-model physics.es_ES
dc.description.sponsorshipWe would like to acknowledge K. W. Lai for suggesting the search for these processes, and thank P. Artoisenet and J.-P. Lansberg for many useful discussions and help with theoretical inputs into the MADGRAPH simulation. We thank the Fermilab staff and the technical staffs of the participating institutions for their vital contributions.This work was supported by the U.S. Department ofEnergy and National Science Foundation; the Italian Istituto Nazionale di Fisica Nucleare; the Ministry of Education, Culture, Sports, Science and Technology of Japan; the Natural Sciences and Engineering Research Council of Canada; the National Science Council of the Republic of China; the Swiss National Science Foundation; the A. P. Sloan Foundation; the Bundesministerium für Bildung und Forschung, Germany; the Korean World Class University Program,the National Research Foundation of Korea; the Science and Technology Facilities Council and the Royal Society,United Kingdom; the Russian Foundation for Basic Research; the Ministerio de Ciencia e Innovación, Consolider-Ingenio 2010, Spain; the Slovak R&D Agency; the Academy of Finland; the Australian Research Council (ARC); and the EU community Marie Curie Fellowship Contract No. 302103.es_ES
dc.format.extent10 p.es_ES
dc.language.isoenges_ES
dc.publisherAmerican Physical Societyes_ES
dc.rights© 2015 American Physical Society*
dc.sourcePhys. Rev. D, Vol. 91, Num. 5, Pag. 052011 (2015)es_ES
dc.titleSearch for production of an Υ(1S) meson in association with a W or Z boson using the full 1.96 TeV p¯p collision data set at CDFes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.relation.publisherVersionhttps://doi.org/10.1103/PhysRevD.91.052011es_ES
dc.rights.accessRightsopenAccesses_ES
dc.identifier.DOI10.1103/PhysRevD.91.052011
dc.type.versionpublishedVersiones_ES


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