Determination of the mass of the W boson
  Previous studies of the physics potential of LEP2 indicated that with the design luminosity of 500 inverse picobarn one may get a direct measurement of the mass of the W-boson with a precision in the range 30 - 50 MeV. This report presents an updated evaluation of the estimated error on the mass of the W-boson based on recent simulation work and improved theoretical input. The most efficient experimental methods which will be used are also described. 
Z. Kunszt (convener), J.W. Stirling (convener), A. Ballestrero, S.   Banerjee, A. Blondel, M. Campanelli, F. Cavallari, D.G....