Speaker
Karel Soustruznik
(C)
Description
We present measurements of the cross sections for the production
of top-antitop quark pair production via the strong interaction and
for the production of single top quarks via the weak interaction in
proton-antiproton collisions at sqrt(s)=1.96 TeV using data
corresponding to integrated luminosities of up to 5.4 fb-1. The data
were collected with the D0 detector at the Fermilab Tevatron collider.
For the top-antitop pair production, measurements are obtained from
the study of the kinematic properties and of the b-tagging rates in
final states for with either a charged lepton pair accompanied by additional
jets and missing transverse momentum, and in final states with one
charged lepton, three or more jets and missing transverse momentum.
For the single
top quark production the measurement is obtained from the final states
with one charged lepton, at least two jets and missing transverse momentum,
and studies of the relative contributions of different production mechanisms
are also presented. Finally we present measurements of the
forward-backward asymmetry in the top-antitop quark final states.
Authors
Karel Soustruznik
(C)
Dr
Marco Verzocchi
(Albert-Ludwigs-Universitaet Freiburg (DE))
