Speaker
Summary
Measurements of the inclusive top quark pair production cross sections
in proton-proton collisions with the ATLAS detector at the Large Hadron
Collider are presented. The measurements are performed requiring one or
two electrons or muons in the final state. Various experimental techniques
are compared. The most precise result requires opposite sign electrons and
muons and uses the full data-set at a centre-of-mass energy of 8 TeV in
good agreement to a recent NNLO+NNLL QCD calculation. In addition, a
differential measurement of the top transverse momentum and kinematic
properties of the top-anti-top pair are discussed. This measurement requires
one electron or muon in the final state and probes our understanding of
top pair production in the TeV regime and is compared to recent Monte Carlo
generators implementing LO and NLO matrix elements matched with parton
showers and NLO QCD calculations. The data show sensitivity to parton
density functions.
