HEAVY HIGGS SEARCH AT TEV E+E- LINEAR COLLIDER

We have studied a possibility of heavy Higgs search via the e+e--->nu(e)nu(e)W+W-BAR process at a future TeV energy electron-positron linear collider. Differential cross sections of a signal and background processes have been calculated by a method based on the helicity amplitude with all diagrams contributed to the processes. The Higgs boson with mass of 700 GeV can be found with integrated luminosity of 200 fb-1 at a center-of-mass energy of 1 TeV. It is also found that the signals from the Higgs boson with a mass of 1 TeV can be distinguished from the case of a massless Higgs boson in the invariant mass distribution of the W-pair at a center-of-mass energy of 1.5 TeV.