Search for single top production via FCNC at LEP at sqrt(s) = 189-208   GeV
  A search for single top production (e+e- -> t cbar) via Flavour Changing Neutral Currents (FCNC) was performed using the data taken by the DELPHI detector at LEP2. The data analysed have been accumulated at centre-of-mass energies ranging from 189 to 208 GeV. Limits at 95% confidence level were obtained on the anomalous coupling parameters kappa_gamma and kappa_Z. 
The DELPHI Collaboration: J. Abdallah, et al