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DELPHI Collaboration; Castillo Giménez, María Victoria; Cortina Gil, Eduardo; Costa Mezquita, María José; Ferrer Soria, Antonio; Fuster Verdú, Juan A.; García García, Carmen; Gil Botella, Inés; Hernández Rey, Juan José; Higón Rodríguez, Emilio; Oyanguren Campos, Arantza; Perepelitsa, V.; Salt Cairols, José; Tortosa Martínez, Pablo | |||
Aquest document és un/a article, creat/da en: 2001 | |||
Este documento está disponible también en : 10.1016/S0370-2693(01)00143-5 |
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Searches for spontaneous R-parity violating signals at sqrt(s) = 183 GeV and sqrt(s) = 189 GeV have been performed using the 1997 and 1998 DELPHI data, under the assumption of R-parity breaking in the third lepton family. The expected topology for the decay of a pair of charginos into two acoplanar taus plus missing energy was investigated and no evidence for a signal was found. The results were used to derive a limit on the chargino mass and to constrain the allowed domains of the MSSM parameter space. | |||
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