Speaker
Dr
Marino Romano
(BOLOGNA)
Description
In this talk three measurements of ttbar differential cross section at will be shown: with respect to the transverse momentum, to the mass and to the rapidity of the ttbar system.
The analysis was carried over a data sample of 2.05fb−1 recorded with the ATLAS detector. The events were selected with a cut based approach in the one lepton plus jets channel, where the lepton can be either an electron or a muon.
The most relevant backgrounds (multi-jet QCD and W+ jets) were extracted using data driven methods, while the others (Z+ jets, diboson and single top) were obtained with Monte Carlo techniques.
The final background-subtracted distributions were corrected for detector and selection effects using unfolding methods. The measurements are dominated by the systematic uncertainties and show good agreement with the Standard Model predictions.
Primary author
Dr
Marino Romano
(BOLOGNA)
