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

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 partic...

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Main Authors: Aad, Georges (Author) , Anders, Gabriel (Author) , Andrei, George Victor (Author) , Childers, J. Taylor (Author) , Davygora, Yuriy (Author) , Dietzsch, Thorsten (Author) , Geweniger, Christoph (Author) , Hanke, Paul (Author) , Henke, Michael (Author) , Khomich, Andrei (Author) , Kluge, Eike-Erik (Author) , Kugel, Andreas (Author) , Lendermann, Victor (Author) , Männer, Reinhard (Author) , Meier, Karlheinz (Author) , Müller, Felix (Author) , Poddar, Sahill (Author) , Radescu, Voica (Author) , Schätzel, Sebastian (Author) , Scharf, Veit (Author) , Schmitt, Sebastian (Author) , Schöning, André (Author) , Schroer, Nicolai (Author) , Schultz-Coulon, Hans-Christian (Author) , Stamen, Rainer (Author) , Wessels, Martin (Author)
Corporate Author: ATLAS Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 18 January 2012
In: Physics letters
Year: 2012, Volume: 708, Issue: 3, Pages: 221-240
ISSN:1873-2445
DOI:10.1016/j.physletb.2012.01.042
Online Access:Resolving-System, Volltext: http://dx.doi.org/10.1016/j.physletb.2012.01.042
Verlag, Volltext: http://www.sciencedirect.com/science/article/pii/S037026931200055X
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Author Notes:ATLAS Collaboration ; G. Aad, G. Anders, V. Andrei, J.T. Childers, Y. Davygora, T.A. Dietzsch, C. Geweniger, P. Hanke, M. Henke, A. Khomich, E.-E. Kluge, A. Kugel, V. Lendermann, R. Maenner, K. Meier, F. Mueller, S. Poddar, V. Radescu, S. Schaetzel, V. Scharf, S. Schmitt, A. Schöning, N. Schroer, H.-C. Schultz-Coulon, R. Stamen, M. Wessels [und 2998 weitere]
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Summary: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 pT>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.
Item Description:Gesehen am 29.11.2018
Physical Description:Online Resource
ISSN:1873-2445
DOI:10.1016/j.physletb.2012.01.042

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