TY  - JOUR
AU  - ATLAS Collaboration (Aad, G. et al
AU  - Amoros, G.
AU  - Cabrera Urban, S.
AU  - Castillo Gimenez, V.
AU  - Costa, M. J.
AU  - Escobar, C.
AU  - Ferrer, A.
AU  - Fuster, J.
AU  - Garcia, C.
AU  - Gonzalez de la Hoz, S.
AU  - Hernandez Jimenez, Y.
AU  - Higon-Rodriguez, E.
AU  - Irles Quiles, A.
AU  - Kaci, M.
AU  - Lacasta, C.
AU  - Lacuesta, V. R.
AU  - Marti-Garcia, S.
AU  - Miñano, M.
AU  - Mitsou, V. A.
AU  - Moles-Valls, R.
AU  - Moreno Llacer, M.
AU  - Oliver Garcia, E.
AU  - Perez Garcia-Estañ, M. T.
AU  - Ros, E.
AU  - Salt, J.
AU  - Solans, C. A.
AU  - Soldevila, U.
AU  - Sanchez, J.
AU  - Torro Pastor, E.
AU  - Valladolid Gallego, E.
AU  - Valls Ferrer, J. A.
AU  - Villaplana Perez, M.
AU  - Vos, M.
AU  - Wildauer, A.
PY  - 2011
DA  - 2011//
TI  - Measurement of the top quark-pair production cross section with ATLAS in pp collisions at sqrt(s)=7 TeV
T2  - Eur. Phys. J. C
JO  - European Physical Journal C
SP  - 1577
EP  - 36pp
VL  - 71
IS  - 3
PB  - Springer
AB  - A measurement of the production cross-section for top quark pairs (t (t) over bar) in pp collisions at root s = 7 TeV is presented using data recorded with the ATLAS detector at the Large Hadron Collider. Events are selected in two different topologies: single lepton (electron e or muon mu) with large missing transverse energy and at least four jets, and dilepton (ee, μμor e mu) with large missing transverse energy and at least two jets. In a data sample of 2.9 pb(-1), 37 candidate events are observed in the single-lepton topology and 9 events in the dilepton topology. The corresponding expected backgrounds from non-t (t) over bar Standard Model processes are estimated using data-driven methods and determined to be 12.2 +/- 3.9 events and 2.5 +/- 0.6 events, respectively. The kinematic properties of the selected events are consistent with SM t (t) over bar production. The inclusive top quark pair production cross-section is measured to be sigma(t (t) over bar) = 145 +/- 31 (stat.)(-27)(+42) (syst.) pb. The measurement agrees with perturbative QCD calculations.
SN  - 1434-6044
UR  - http://arxiv.org/abs/1012.1792
UR  - https://doi.org/10.1140/epjc/s10052-011-1577-6
DO  - 10.1140/epjc/s10052-011-1577-6
LA  - English
N1  - ISI:000291698400004
ID  - ATLASCollaborationAad_etal2011
ER  -