Intermediate-mass Higgs-boson production in polarizede+e−colliders

Production of the standard Higgs boson $H^0$ in the mass range of 40 to 150 GeV/$c^2$ in eē annihilations into $H^0$ll¯ where l=e,μ,ν is calculated for longitudinally polarized incoming beams. It is found that the $H^0$νν¯ is best for the $H^0$ searches if accurate determination of missing energies is available. Initial beam polarizations are useful for filtering the signals from backgrounds as well as for distinguishing them from other interesting processes, such as $Z^0$νν¯.