Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1994-11-25
Phys.Lett. B346 (1995) 137-142
Physics
High Energy Physics
High Energy Physics - Phenomenology
11 pages, LaTex (uses epsf.sty, 3 ps-figures appended as extra uuencoded file). The complete paper, including figures, is also
Scientific paper
10.1016/0370-2693(94)01668-3
The polarization dependent momentum distributions of top quarks and their decay products are calculated for $t\bar t$ production at future $e^+e^-$ colliders with polarized beams. The Green function formalism is applied to this reaction near energy threshold. The Lippmann--Schwinger equations for the $S$-wave and $P$-wave Green functions are solved numerically for the QCD chromostatic potential given by the two-loop formula at large momentum transfers and Richardson ansatz at intermediate and small ones. It is demonstrated that for the longitudinally polarized electron beam an optimally polarized sample of top quarks can be produced.
Harlander Robert
Jezabek Marek
Kuhn Johann H.
Teubner Thomas
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