Mssm Searches at Lep 2
Abstract
During the LEP2 operation, the 4 LEP experiments have collected data at centre-of-mass energies up to 209 GeV. Those data have been analyzed in the search of charginos, neutralinos and sfermions in the framework of the Minimal Supersymmetric Standard Model (MSSM) with R-parity conservation and violation assuming the lightest neutralino to be the Lightest Supersymmetric Particle (SUGRA-models) and in the context of the gauge-mediated supersymmetry breaking theory with R-parity conservation where the LSP is the gravitino (GMSB-model). No evidence for a signal was found in any of the channels. The results of each search were used to derive upper limits on production cross-sections and masses. In addition, for the neutralino LSP with R-parity conservation scenario, the combined result of all searches excludes regions in the parameter space of the constrained MSSM, leading to limits on the mass of the LSP. All limits are given at 95% confidence level, all results are preliminary.
- Publication:
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HEP-MAD 2001
- Pub Date:
- July 2002
- DOI:
- 10.1142/9789812776983_0013
- Bibcode:
- 2002hepm.conf...93A