Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2011-08-29
Eur.Phys.J.C 72 (2012) 1844
Physics
High Energy Physics
High Energy Physics - Experiment
22 pages plus author list (33 pages total), 18 figures, 5 tables, final version to appear in European Physical Journal C
Scientific paper
10.1140/epjc/s10052-011-1844-6
The measurement of missing transverse momentum in the ATLAS detector, described in this paper, makes use of the full event reconstruction and a calibration based on reconstructed physics objects. The performance of the missing transverse momentum reconstruction is evaluated using data collected in pp collisions at a centre-of-mass energy of 7 TeV in 2010. Minimum bias events and events with jets of hadrons are used from data samples corresponding to an integrated luminosity of about 0.3 inverse nb and 600 inverse nb, together with events containing a Z boson decaying to two leptons (electrons or muons) or a W boson decaying to a lepton (electron or muon) and a neutrino, from a data sample corresponding to an integrated luminosity of about 36 inverse pb. An estimate of the systematic uncertainty on the missing transverse momentum scale is presented.
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