Speaker
Serban Protopopescu
(Unknown)
Description
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 addition,
differential measurements of the top transverse momentum and kinematic
properties of the top-anti-top pair are discussed. These measurements,
including results using boosted tops, probe our understanding of top
pair production in the TeV regime. The results, unfolded to particle
and parton level, are compared to recent Monte Carlo generators
implementing LO and NLO matrix elements matched with parton showers
and NLO QCD calculations. The data show some sensitivity to parton
density functions.
Author
Dick Greenwood Jr
(Louisiana Tech University (US))
