Boson boson scattering at LHC
  We analyse some features of WW scattering processes at LHC. The severe cancellations between fusion diagrams and the other contributions evidence the necessity of complete calculations for studying the high WW invariant mass region and disentangling the standard Higgs case from new physics. 
Elena Accomando, Alessandro Ballestrero, Aissa Belhouari and Ezio   Maina