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Search for charginos in e(+)e(-) interactions at root s=189 GeV

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Search for charginos in e(+)e(-) interactions at root s=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	Costa Mezquita, María José
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	Oyanguren Campos, Arantza
dc.contributor.author	Salt Cairols, José
dc.contributor.author	Tortosa Martínez, Pablo
dc.date.accessioned	2014-03-29T12:15:34Z
dc.date.available	2014-03-29T12:15:34Z
dc.date.issued	2000
dc.identifier.citation	DELPHI Collaboration Alemany, R. Cabrera Urbán, Susana Castillo Giménez, María Victoria Cortina, E. Costa, M. Ferrer Soria, Antonio Fuster Verdú, Juan A. García García, Carmen Gil, I. Hernández Rey, Juan José Higón Rodríguez, Emilio Martínez Vidal, Fernando Oyanguren Campos, Arantza Salt Cairols, José ,Tortosa Martínez, Pablo, 2000 Search for charginos in e(+)e(-) interactions at root s=189 GeV Physics Letters B 479 1-3 129 143
dc.identifier.uri	http://hdl.handle.net/10550/33797
dc.description.abstract	An update of the searches for charginos and gravitinos is presented, based on a data sample corresponding to the 158 pb^{-1} recorded by the DELPHI detector in 1998, at a centre-of-mass energy of 189 GeV. No evidence for a signal was found. The lower mass limits are 4-5 GeV/c^2 higher than those obtained at a centre-of-mass energy of 183 GeV. The (\mu,M_2) MSSM domain excluded by combining the chargino searches with neutralino searches at the Z resonance implies a limit on the mass of the lightest neutralino which, for a heavy sneutrino, is constrained to be above 31.0 GeV/c^2 for tan(beta) \geq 1.
dc.relation.ispartof	Physics Letters B, 2000, vol. 479, num. 1-3, p. 129-143
dc.subject	Física nuclear
dc.subject	Partícules (Física nuclear)
dc.title	Search for charginos in e(+)e(-) interactions at root s=189 GeV
dc.type	journal article	es_ES
dc.date.updated	2014-03-29T12:15:34Z
dc.identifier.doi	10.1016/S0370-2693(00)00313-0
dc.identifier.idgrec	006708
dc.rights.accessRights	open access	es_ES
dc.identifier.url	10.1016/S0370-2693(00)00313-0