Search for supersymmetric particles assuming R-parity non-conservation in e+e- collisions at sqrt{s} = 192 to 208 GeV

TL;DR

This paper reports on searches for supersymmetric particles with R-parity non-conservation in electron-positron collisions at energies between 192 and 208 GeV, finding no evidence of new particles and setting limits on their masses.

Contribution

First search for supersymmetric particles with R-parity non-conservation at LEP energies, constraining MSSM parameters and particle masses.

Findings

No excess over Standard Model expectations observed.

Limits set on masses of supersymmetric particles.

Constraints placed on MSSM parameter space.

Abstract

Searches for pair-production of supersymmetric particles under the assumption of non-conservation of R-parity with a dominant LLEbar or UbarDbarDbar term have been performed using the data collected by the DELPHI experiment at LEP in e+e- collisions at centre-of-mass energies from 192 up to 208 GeV. No excess of data above Standard Model expectations was observed. The results were used to constrain the MSSM parameter space and to derive limits on the masses of supersymmetric particles.