TTP94-09 Top Quark Physics

TTP94-09 Top Quark Physics

TTP94-09 Top Quark Physics

Top quark studies at future $e^+e^-$ colliders are considered.<BR> Two issues are discussed: <OL TYPE=a> <LI>Some results are presented on the decays of top quarks. Energy distributions of charged leptons and neutrinos in $t\to bW\to be^+\nu$ and jets in $t\to bW\to b\bar du$ decays are sensitive to the structure of $tbW$ vertex. Distributions of charged leptons from top decays are particularly useful in polarization studies whereas neutrinos are sensitive to deviations from the Standard Model. <LI>Recent calculations are reviewed on the top quark pair production in $e^+e^-$ annihilation. The differential cross sections in the threshold region can lead to an accurate determination of the top quark mass and the interquark potential. The effects of the top-Higgs Yukawa coupling and some higher order QCD corrections are also under control. </OL>

M. Je\.zabek
Nucl. Phys. Proc. Suppl. 37B 197 1994
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