Analysis of LEP Constraints on Supersymmetric Models with a Light Gravitino

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dc.creatorEllis, J.
dc.creatorLopez, J.
dc.creatorNanopoulos, D.
dc.date1996-10-24
dc.date.accessioned2026-07-07T10:33:25Z
dc.date.available2026-07-07T10:33:25Z
dc.descriptionWe propose an analysis of LEP constraints on radiative neutralino decays into a light gravitino, based on the plane of the Higgs mixing parameter mu and the SU(2) gaugino mass M_2. The preliminary LEP 2W constraints in the (mu, M_2) plane are considerably stronger than for supersymmetric models in which the lightest neutralino is stable. A significant portion of the parameter space in which chargino or selectron decay into a final state containing a light gravitino could provide an interpretation of the CDF ee gamma gamma + E_T,miss event can now excluded by the preliminary LEP 2W data.
dc.description9 pages, LaTeX, 3 figures (included)
dc.identifierhttps://arxiv.org/abs/hep-ph/9610470
dc.identifierhttp://arxiv.org/abs/hep-ph/9610470
dc.identifierPhys.Lett.B394:354-358,1997
dc.identifierdoi:10.1016/S0370-2693(97)00019-1
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/179099
dc.subjectHigh Energy Physics - Phenomenology
dc.titleAnalysis of LEP Constraints on Supersymmetric Models with a Light Gravitino
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