"The ratio of production cross sections of the W and Z bosons with exactly one associated jet is presented as a function of jet transverse momentum threshold. The measurement has been designed to maximise cancellation of experimental and theoretical uncertainties, and is reported both within a particle-level kinematic range corresponding to the detector acceptance and as a total cross-section ratio. Results are obtained with the ATLAS detector at the LHC in pp collisions at a centre-of-mass energy of 7 TeV using an integrated luminosity of 33 pb(-1). The results are compared with perturbative leading-order, leading-log, and next-to-leading-order QCD predictions, and are found to agree within experimental and theoretical uncertainties. The ratio is measured for events with a single jet with p(T) > 30 GeV to be 8.73 +\/- 0.30(stat) +\/- 0.40(syst) in the electron channel, and 8.49 +\/- 0.23(stat) +\/- 0.33(syst) in the muon channel. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved. RI Buttar, Craig\/D-3706-2011; Robson, Aidan\/G-1087-2011; Pina, Joao \/C-4391-2012; Takai, Helio\/C-3301-2012; Darbo, Giovanni\/C-8175-2012; St.Denis, Richard\/C-8997-2012; valente, paolo\/A-6640-2010; Jones, Roger\/H-5578-2011; Britton, David\/F-2602-2010; Li, Xuefei\/C-3861-2012; Doyle, Anthony\/C-5889-2009; Fazio, Salvatore \/G-5156-2010; Smirnova, Lidia\/D-8089-2012; Sivoklokov, Sergey\/D-8150-2012; Smirnov, Sergei\/F-1014-2011; Gladilin, Leonid\/B-5226-2011; Barreiro, Fernando\/D-9808-2012; Kramarenko, Victor\/E-1781-2012; Prokoshin, Fedor\/E-2795-2012; Alexa, Calin\/F-6345-2010; Gutierrez, Phillip\/C-1161-2011; Pacheco Pages, Andres\/C-5353-2011; Livan, Michele\/D-7531-2012; Petrucci, Fabrizio\/G-8348-2012; Wemans, Andre\/A-6738-2012; Fabbri, Laura\/H-3442-2012; Kurashige, Hisaya\/H-4916-2012; Villa, Mauro\/C-9883-2009; Delmastro, Marco\/I-5599-2012"

Aad, G., Abbott, B., Abdallah, J., Abdelalim, A.a., Abdesselam, A., Abdinov, O., et al. (2012). A measurement of the ratio of the W and Z cross sections with exactly one associated jet in pp collisions at root s=7 TeV with ATLAS. PHYSICS LETTERS. SECTION B, 708(3-5), 221-240 [10.1016/j.physletb.2012.01.042].

A measurement of the ratio of the W and Z cross sections with exactly one associated jet in pp collisions at root s=7 TeV with ATLAS

CERADINI, Filippo;DI MICCO, Biagio;Di Nardo R;