Boson - boson scattering and Higgs production at the LHC from a six fermion

Boson-boson scattering and Higgs production in boson-boson fusion hold the key to electroweak symmetry breaking. In order to analyze these essential features of the Standard Model we have performed a partonic level study of all processes q1q2 → q3q4q5q6lν at the LHC using the exact matrix elements at O(α 6 em) provided by PHASE, a new MC generator. These processes include also three boson production and the purely electroweak contribution to t̄t production as well as all irreducible backgrounds. Kinematical cuts have been studied in order to enhance the VV scattering signal over background. PHASE has been compared with different Monte Carlo’s showing that a complete calculation is necessary for a correct description of the process. DFTT 37/2005 E.A. is supported by the Italian Ministero dell’Istruzione, dell’Università e della Ricerca (MIUR) under contract Decreto MIUR 26-01-2001 N.13 “Incentivazione alla mobilità di studiosi stranieri ed italiani residenti all’estero”. Work supported by MIUR under contract 2004021808 009.