Speaker
Prof.
Enrico Tassi
(Universita' della Calabria and INFN-Cosenza)
Description
In proton-proton collisions at the LHC, pairs of top and anti-top quarks
are expected to be mostly produced through gluon fusion and the large number of ttbar pairs
can be used to test the predictions of Quantum Chromodynamics.
Measurements of the top quark production cross sections in proton-proton
collisions at 7 and 8 TeV with the ATLAS and CMS detectors at the Large
Hadron Collider are presented. Both inclusive and differential cross-section measurements are compared to the theoretical predictions.
We also present measurements of the spin correlation between top and
anti-top quarks as well as of the top-quark charge asymmetry which
constitute important tests of QCD and are sensitive to potential
contributions from new physics. Besides being compared to different predictions from the
standard model the measurements the results are also used to extract the strong coupling constant and the pole mass.
Primary author
Judith Katzy
(DESY)
