On the determination of MW and TGCs in W-pair production using the best measured kinematical variables

A study is made of the feasibility of maximum likelihood fits to determine MW and triple gauge boson couplings using only those experimental kinematical variables that are well measured. A computational tool to calculate theoretical probabilities for those kinematical variables is discussed and then applied to samples of unweighted events produced by an event generator. Detailed results on the MW determination for semileptonic final states in W-pair production show the feasibility of the method. For TGCs one result is presented as an illustration.