W, Z and H bosons in the three particle final states production at TeV energy γe and γγcolliders

The short review of complete tree level calculations for three particle final states production at the future e+e-, γe and γγ colliders is presented. The results obtained with the help of CompHEP system for total cross sections and other characteristics of processes in the energy range 0.1-2 TeV are summarized and their comparison with the results of different approaches is discussed. In particular we are interested in the processes of W, Z and H boson production. The reactions under consideration are especially interesting in connection with probing of new couplings, searching for new particle signals and as an important backgrounds to these experiments. The main subjects described are basic reactions rates (sections 2,3), Higgs production in γe collisions (section 4), the possibilities of testing some four vector bosons interaction vertices and Higgs-fermion coupling (section 5), the process of excited neutrino production with the Standard Model backgrounds (section 6). (orig.)