POLARIZATION IN TOP-QUARK PAIR PRODUCTION NEAR-THRESHOLD

The polarization dependent momentum distributions of top quarks and th eir decay products are calculated for t ($) over bar t production at f uture e(+)e(-) colliders with polarized beams. The Green function form alism is applied to this reaction near energy threshold. The Lippmann- Schwinger equations for the S-wave and P-wave Green functions are solv ed numerically for the QCD chromostatic potential given by the two-loo p formula at large momentum transfers and Richardson ansatz at interme diate and small ones. It is demonstrated that for the longitudinally p olarized electron beam an optimally polarized sample of top quarks can be produced.