Contents

• Contents
• Introduction
• The Large Collider at CERN
• The DELPHI Detector at LEP
  • Tracking in DELPHI
  • Electromagnetic Calorimeters
  • The Hadron Calorimeter
• Improvement of the Hermeticity
  • The Counters
  • The Fine Mesh Photo Multiplier Tubes
• The Standard Model and Beyond
• The Minimal Supersymmetric Standard Model
  • R-parity
  • The Gaugino/Higgsino Sector
  • The Sfermion Sector
  • The Higgs Sector in the MSSM
• Search for Neutralinos and Sfermions
  • The Experimental Signature
  • Background Processes
  • Analysis
  • Search for Sleptons
• Results
• Conclusions
• Acknowledgements
• Bibliography
• Appendix