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Measurement of the hadronic activity in events with a Z and two jets and extraction of the cross section for the electroweak production of a Z with two jets in pp collisions at √s = 7 TeV

par Chatrchyan, Serguei;Thomas, Laurent ;Vander Velde, Catherine ;Vanlaer, Pascal ;Wang, Jun;Clerbaux, Barbara ;De Lentdecker, Gilles ;Gay, Arnaud ;Hreus, Tomas ;Leonard, Alexandre ;Marage, Pierre ;Mohammadi, Abdollah ;Reis, Thomas ; [et al.]
Référence The Journal of high energy physics, 2013, 10, 062
Publication Publié, 2013-10

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Résumé :

The first measurement of the electroweak production cross section of a Z boson with two jets (Zjj) in pp collisions at √s = 7TeV is presented, based on a data sample recorded by the CMS experiment at the LHC with an integrated luminosity of 5fb-1. The cross section is measured for the ℓℓjj (ℓ = e, μ) final state in the kinematic region m ℓℓ > 50 GeV, mjj > 120 GeV, transverse momenta pjT > 25 GeV and pseudorapidity