a r X i v :h e p -p h /9406340v 1 20 J u n 1994CERN–TH.7295/94DESY 94–093Semi-Analytical Approach toFour-Fermion Production in e +e −Annihilation †D.Bardin 1,2,M.Bilenky 2,3, D.Lehner 3,A.Olchevski 2,a and T.Riemann 31Theory Division,CERN,CH–1211,Geneva 23,Switzerland 2Joint Institute for Nuclear Research,ul.Joliot Curie 6,RU–141980Dubna,Moscow Region,Russia 3DESY–Institut f¨u r Hochenergiephysik,Platanenallee 6,D–15738Zeuthen,Germany ABSTRACT A study of the semi-analytical approach to four-fermion production in e +e −annihila-tion is presented.We classify all possible four-fermion final states and present results of new calculations for the ‘basic’processes with the W W,ZZ ,and ZH off-shell production together with some examples of ‘background’processes.The Initial State Radiative cor-rections are included for the basic processes.Several numerical examples are given in the energy range from LEP 2up to√†Talk presented by D.Bardin.a Present address:PPE Division,CERN.email:BARDINDY@CERNVM.CERN.CH,bilenky@hades.ifh.de,LEHNER@CONVEX.IFH.DE,OLSHEVSK@VXCERN.CERN.CH,RIEMANN@CERNVM.CERN.CH
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