Photon events with missing energy at √s = 183 to 189 GeV
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Photon events with missing energy at √s = 183 to 189 GeV

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Photon events with missing energy at √s = 183 to 189 GeV

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dc.contributor.author DELPHI Collaboration
dc.contributor.author Alemany Fernández, Reyes
dc.contributor.author Cabrera Urbán, Susana
dc.contributor.author Castillo Giménez, María Victoria
dc.contributor.author Cortina Gil, Eduardo
dc.contributor.author Ferrer Soria, Antonio
dc.contributor.author Fuster Verdú, Juan A.
dc.contributor.author García García, Carmen
dc.contributor.author Gil Botella, Inés
dc.contributor.author Hernández Rey, Juan José
dc.contributor.author Higón Rodríguez, Emilio
dc.contributor.author Martínez Vidal, Fernando
dc.contributor.author Navas Concha, Sergio
dc.contributor.author Salt Cairols, José
dc.contributor.author Tortosa Martínez, Pablo
dc.date.accessioned 2014-03-28T13:07:59Z
dc.date.available 2014-03-28T13:07:59Z
dc.date.issued 2000
dc.identifier.uri http://dx.doi.org/10.1007/s100520000434
dc.identifier.uri http://hdl.handle.net/10550/33756
dc.description.abstract The production of single photons has been studied in the reaction e+e- -> gamma + invisible particles at centre-of-mass energies of 183 GeV and 189 GeV. A previously published analysis of events with multi-photon final states accompanied by missing energy has been updated with 189 GeV data. The data were collected with the DELPHI detector and correspond to integrated luminosities of about 51 pb^{-1} and 158 pb^{-1} at the two energies. The number of light neutrino families is measured to be 2.84 +/- 0.15(stat) +/- 0.14(syst). The absence of an excess of events beyond that expected from Standard Model processes is used to set limits on new physics as described by supersymmetric and composite models. A limit on the gravitational scale is also determined.
dc.relation.ispartof European Physical Journal C, 2000, vol. 17, num. 1, p. 53-65
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source DELPHI Collaboration Alemany, R. Cabrera Urbán, Susana Castillo Giménez, María Victoria Cortina, E. Ferrer Soria, Antonio Fuster Verdú, Juan A. García García, Carmen Gil, I. Hernández Rey, Juan José Higón Rodríguez, Emilio Martínez Vidal, Fernando Navas, S. Salt Cairols, José ,Tortosa Martínez, Pablo, 2000 Photon events with missing energy at √s = 183 to 189 GeV European Physical Journal C 17 1 53 65
dc.subject Física nuclear
dc.subject Partícules (Física nuclear)
dc.title Photon events with missing energy at √s = 183 to 189 GeV
dc.type info:eu-repo/semantics/article
dc.date.updated 2014-03-28T13:07:59Z
dc.identifier.doi http://dx.doi.org/10.1007/s100520000434
dc.identifier.idgrec 006716

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