Measurement of the tt¯ production cross section in pp collisions at [Formula presented] TeV with lepton + jets final states

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Date
2013-03-13
Authors
Chatrchyan, S.
Khachatryan, V.
Sirunyan, A. M.
Tumasyan, A.
Adam, W.
Aguilo, E.
Bergauer, T.
Dragicevic, M.
Erö, J.
Fabjan, C.
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Journal ISSN
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Abstract
A measurement of the tt¯ production cross section in pp collisions at s=7 TeV is presented. The results are based on data corresponding to an integrated luminosity of 2.3 fb−1 collected by the CMS detector at the LHC. Selected events are required to have one isolated, high transverse momentum electron or muon, large missing transverse energy, and hadronic jets, at least one of which must be consistent with having originated from a b quark. The measured cross section is 158.1±2.1(stat.)±10.2(syst.)±3.5(lum.) pb, in agreement with standard model predictions.
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Keywords
CMS, Cross section, LHC, Physics, Top quark
Citation
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. v.720(1-3)