Measurement of W+W− production in association with one jet in proton--proton collisions at s√=8 TeV with the ATLAS detector

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Measurement of W+W− production in association with one jet in proton--proton collisions at s√=8 TeV with the ATLAS detector

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Title: Measurement of W+W− production in association with one jet in proton--proton collisions at s√=8 TeV with the ATLAS detector
Author: Chan, Stephen Kam Wah; Clark, Brian Lee; Franklin, Melissa; Giromini, Paolo; Huth, John; Ippolito, Valerio; Lazovich, Tomo; Lopez Mateos, David; Morii, Masahiro; Rogan, Christopher S.; Roloff, Jennifer Kathryn; Skottowe, Hugh Philip; Sun, Siyuan; Tolley, Emma; Tong, Baojia; Tuna, Alexander; Zambito, Stefano

Note: Order does not necessarily reflect citation order of authors.

Citation: ATLAS Collaboration. 2016. “Measurement of W+W− production in association with one jet in proton--proton collisions at s√=8 TeV with the ATLAS detector.” Physics Letters B 763 (December): 114–133. doi:10.1016/j.physletb.2016.10.014.
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Abstract: The production of W boson pairs in association with one jet in pp collisions at s√=8 TeV is studied using data corresponding to an integrated luminosity of 20.3 fb−1 collected by the ATLAS detector during 2012 at the CERN Large Hadron Collider. The cross section is measured in a fiducial phase-space region defined by the presence of exactly one electron and one muon, missing transverse momentum and exactly one jet with a transverse momentum above 25 GeV and a pseudorapidity of |η|<4.5. The leptons are required to have opposite electric charge and to pass transverse momentum and pseudorapidity requirements. The fiducial cross section is found to be σfid,1-jetWW=136±6(stat)±14(syst)±3(lumi) fb. In combination with a previous measurement restricted to leptonic final states with no associated jets, the fiducial cross section of WW production with zero or one jet is measured to be σfid,≤1-jetWW=511±9(stat)±26(syst)±10(lumi) fb. The ratio of fiducial cross sections in final states with one and zero jets is determined to be 0.36±0.05. Finally, a total cross section extrapolated from the fiducial measurement of WW production with zero or one associated jet is reported. The measurements are compared to theoretical predictions and found in good agreement.
Published Version: doi:10.1016/j.physletb.2016.10.014
Other Sources: https://arxiv.org/abs/1608.03086
Terms of Use: This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAP
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:32941791
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