Search for Spontaneous R-parity violation at sqrt(s) = 183 GeV and 189 GeV

Details Search for Spontaneous R-parity violation at sqrt(s) = 183 GeV and 189 GeV Search for Spontaneous R-parity violation at sqrt(s) = 183 GeV and 189 GeV

2001-02-23

arxiv.org/abs/hep-ex/0102045v1

Phys.Lett.B502:24-36,2001

Physics

High Energy Physics

High Energy Physics - Experiment

18 pages, 6 figures, Accepted by Physics Letters B

Scientific paper

10.1016/S0370-2693(01)00143-5

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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