Speaker
Mr
Ritesh Singh
(LPT Orsay, France)
Description
We investigate the possibilities of studying possible new physics in various
processes of t-quark production using the kinematical distributions of the secondary
lepton coming from decay of t-quarks. We show that the angular distributions of
secondary lepton are insensitive the anomalous tbW vertex and hence is a pure probe
of new physics in a generic process of t-quark production. The energy distribution of
these leptons is distinctly affected by anomalous tbW couplings and can be used to
analyze them independent of the production process of t-quarks. The effects of
$t$-polarization on the distributions of decay leptons are demonstrated for top-pair
production process at a gamma-gamma-collider mediated by a heavy Higgs boson.
Author
Mr
Ritesh Singh
(LPT Orsay, France)
