DOI 10.1007/s100529900224
Searches for R-parity violating decays of Gauginos at 183 GeV at LEP
The OPAL Collaboration
G.Abbiendi
- et al.
2 Dipartimento di Fisica dell' Università di Bologna and INFN,
40126 Bologna, Italy
Received: 14 December 1998 / Published online: 14 October 1999
Abstract
Searches for pair-produced charginos and neutralinos with R-parity violating decays have been performed
using a data sample corresponding to an integrated luminosity of
56 pb-1 collected with the OPAL detector at LEP
at a centre-of-mass energy of 
183 GeV.
An important consequence of R-parity violation
is that
the lightest supersymmetric particle becomes unstable.
The searches have been performed under the assumptions
that
the
lightest supersymmetric particle promptly decays
and that only one
R-parity violating coupling is dominant
for each of the decay modes considered. Such processes would
yield multiple leptons, jets plus leptons, or multiple jets with or
without significant missing energy in the final state.
No excess of such events above Standard Model backgrounds
has been observed.
Limits are presented on the production cross-sections of
gauginos in R-parity violating scenarios.
Limits
are also presented in the framework
of the Minimal Supersymmetric Standard Model.
Copyright Springer-Verlag
