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dc.contributor.author | Aaltonen, T. | - |
dc.contributor.author | Álvarez González, B. | - |
dc.contributor.author | Casal, Bruno | - |
dc.contributor.author | Cuevas, Javier | - |
dc.contributor.author | Gómez, Gervasio | - |
dc.contributor.author | Palencia, Enrique | - |
dc.contributor.author | Rodrigo, Teresa | - |
dc.contributor.author | Ruiz Jimeno, Alberto | - |
dc.contributor.author | Scodellaro, Luca | - |
dc.contributor.author | Vila, Iván | - |
dc.contributor.author | Vilar Cortabitarte, R. | - |
dc.contributor.author | Vizán, J. | - |
dc.contributor.author | CDF Collaboration | - |
dc.date.accessioned | 2012-06-22T11:22:26Z | - |
dc.date.available | 2012-06-22T11:22:26Z | - |
dc.date.issued | 2012 | - |
dc.identifier | doi: 10.1103/PhysRevD.85.011104 | - |
dc.identifier | issn: 1550-7998 | - |
dc.identifier | e-issn: 1550-2368 | - |
dc.identifier.citation | Physical Review D 85(1): 011104(R) (2012) | - |
dc.identifier.uri | http://hdl.handle.net/10261/52061 | - |
dc.description.abstract | We present a search for new phenomena in events with two reconstructed Z bosons and large missing transverse momentum, sensitive to processes pp̅ →X2X2→ZZX1X1, where X2 is an unstable particle decaying as X2→ZX1 and X1 is undetected. The particles X1 and X2 may be, among other possibilities, fourth-generation neutrinos or supersymmetric particles. We study the final state in which one Z boson decays to two charged leptons and the second decays hadronically. In data corresponding to an integrated luminosity of 4.2 fb-1 from proton-antiproton collisions recorded by the CDF II detector at the Tevatron, with center-of-mass energy of 1.96 TeV, we find agreement between data and standard-model backgrounds. We calculate 95% confidence level upper limits on the cross section of the process pp̅ →X2X2→ZZX1X1 ranging from 50 fb to 1 pb, depending on the masses of X1 and X2. | - |
dc.description.sponsorship | Department of Energy (US); National Science Foundation (US); Istituto Nazionale di Fisica Nucleare (Italia); Ministry of Education, Culture, Sports, Science and Technology (Japan); National Research Council of Canada; Swiss National Science Foundation; Alfred P. Sloan Foundation; Bundesministerium für Bildung und Forschung (Deutschland); National Research Foundation of Korea; Science and Technology Facilities Council (UK); The Royal Society (UK); Russian Foundation for Basic Research; Ministerio de Ciencia e Innovación (España); Slovak Research and Development Agency; Academy of Finland. | - |
dc.language.iso | eng | - |
dc.publisher | American Physical Society | - |
dc.relation.isversionof | Publisher's version | - |
dc.rights | openAccess | - |
dc.title | Search for new phenomena in events with two Z bosons and missing transverse momentum in pp̅ collisions at √s=1.96 TeV | - |
dc.type | artículo | - |
dc.identifier.doi | 10.1103/PhysRevD.85.011104 | - |
dc.relation.publisherversion | http://dx.doi.org/10.1103/PhysRevD.85.011104 | - |
dc.date.updated | 2012-06-22T11:22:26Z | - |
dc.description.version | Peer Reviewed | - |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.languageiso639-1 | en | - |
item.fulltext | With Fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.openairetype | artículo | - |
Aparece en las colecciones: | (IFCA) Artículos |
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Search for new phenomena in events.pdf | 231,52 kB | Adobe PDF | Visualizar/Abrir |
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