Search for nearly mass degenerate Charginos and Neutralinos                    
  
A search for pair production of Charginos nearly mass degenerate with          
the lightest Neutralino in e+e- collsioins was performed. The data             
were collected at centre-of-mass energies between 189 and 202 GeV              
using the OPAL detector at LEP. Events with high-energetic photons             
from initial state radiation were selected reducing the dominant               
two-photon background to a negligible level. The search is sensitive           
to mass differences ranging from a few hundred MeV to 5 GeV.                   
No significant excess with respect to the Standard Model                       
background was observed. Upper limits on the cross-section for                 
chargino pair-production are set and lower limits on the chargino mass         
are derived for several models.                                                
  
 Parallel session :11                  
 Plenary  session :7a