Probing QCD Parameters with Top-Quark Data
  Results from inclusive and differential measurements of the production cross sections for top quarks in proton-proton collisions at center-of-mass energies of 7 and 8 TeV are compared to predictions at next-to-leading and next-to-next-to-leading order in perturbative Quantum Chromodynamics. From these studies, constraints on the top-quark mass, the strong coupling constant, and on parton distributions functions are determined. 
Sebastian Naumann-Emme (for the ATLAS and CMS Collaborations)
hep-ex hep-ph