Measurement of the Top Pair Production Cross section at ATLAS

Abstract

We present the measurement of the production cross section for top quark pair ($t\bar{t}$) in pp collisions at $\sqrt{s}$ = 7 TeV using the data recorded with the ATLAS detector at the Large Hadron Collider (LHC). Events are selected in single lepton (electron or muon) and dilepton ($ee$, $\mu \mu$, $e\mu$) topologies with multi-jets, and large missing transverse energy (MET). The combined result from these measurements is ${\sigma }_{t\bar{t}}$ = $176\pm 5{(stat.)}_{-10}^{+13}(syst.)\pm 7(lumi.)\mathrm{pb}$, which is in good agreement with the Standard Model prediction.

8 pages, 9 figures, Proceedings of the DPF-2011 Conference, Providence, RI, August 8-13, 2011

References in corpus (2)

• -- HATHOR -- HAdronic Top and Heavy quarks crOss section calculatoR
• Measurement of inclusive jet and dijet cross sections in proton-proton collisions at 7 TeV centre-of-mass energy with the ATLAS detector