Searches for spontaneous R-parity-violating signals at roots = 183 GeV and roots = 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. (C) 2001 Elsevier Science B.V. All rights reserved.

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., et al. (2001). Search for spontaneous R-parity violation at root s=183 GeV and 189 GeV. PHYSICS LETTERS. SECTION B, 502(1-4), 24-36 [10.1016/S0370-2693(01)00143-5].

Search for spontaneous R-parity violation at root s=183 GeV and 189 GeV

CALVI, MARTA;PAGANONI, MARCO;RAGAZZI, STEFANO;TABARELLI DE FATIS, TOMMASO;TERRANOVA, FRANCESCO;
2001

Abstract

Searches for spontaneous R-parity-violating signals at roots = 183 GeV and roots = 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. (C) 2001 Elsevier Science B.V. All rights reserved.
Articolo in rivista - Articolo scientifico
high energy collider; LEP; DELPHI; supersymmetry
English
15-mar-2001
502
1-4
24
36
none
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., et al. (2001). Search for spontaneous R-parity violation at root s=183 GeV and 189 GeV. PHYSICS LETTERS. SECTION B, 502(1-4), 24-36 [10.1016/S0370-2693(01)00143-5].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/46653
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