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Evidence for electroweak production of W±W±jj in pp collisions at √s = 8 TeV with the ATLAS Detector

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This Letter presents the first study of W±W±jj, same-electric-charge diboson production in associationwith two jets, using20.3fb−1of proton-proton collision data atffiffiffisp¼8TeV recorded by the ATLASdetector at the Large Hadron Collider. Events with two reconstructed same-charge leptons (e±e±, e±...

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Main Authors: Aad, Georges (Author) , Anders, Christoph (Author) , Andrei, George Victor (Author) , Brandt, Oleg (Author) , Colombo, Tommaso (Author) , Davygora, Yuriy (Author) , Dietzsch, Thorsten (Author) , Dunford, Monica (Author) , Giulini, Maddalena (Author) , Hanke, Paul (Author) , Jongmanns, Jan (Author) , Kasieczka, Gregor (Author) , Khomich, Andrei (Author) , Kluge, Eike-Erik (Author) , Kretz, Moritz (Author) , Kugel, Andreas (Author) , Laier, Heiko (Author) , Lang, Valerie (Author) , Meier, Karlheinz (Author) , Müller, Felix (Author) , Narayan, Rohin T. (Author) , Poddar, Sahill (Author) , Schätzel, Sebastian (Author) , Scharf, Veit (Author) , Schmitt, Sebastian (Author) , Schöning, André (Author) , Schultz-Coulon, Hans-Christian (Author) , Stamen, Rainer (Author) , Wessels, Martin (Author)
Corporate Author: ATLAS Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 3 October 2014
In: Physical review letters
Year: 2014, Volume: 113, Issue: 14
ISSN:1079-7114
DOI:10.1103/PhysRevLett.113.141803
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevLett.113.141803
Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.113.141803
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Author Notes:G. Aad et al. (ATLAS Collaboration); G. Aad, C. Anders, G.V. Andrei, O. Brandt, T. Colombo, Y. Davygora, T. Dietzsch, M. Dunford, M. Giulini, P. Hanke, J. Hofmann, J. Jongmanns, G. Kasieczka, A. Khomich, E.-E. Kluge, M. Kretz, A. Kugel, H. Laier, V. Lang, K. Meier, F. Müller, R.T. Narayan, S. Poddar, S. Schätzel, V.Scharf, S. Schmitt, A. Schöning, H.-C. Schultz-Coulon, R. Stamen, M. Wessels und weitere 2850
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Summary:This Letter presents the first study of W±W±jj, same-electric-charge diboson production in associationwith two jets, using20.3fb−1of proton-proton collision data atffiffiffisp¼8TeV recorded by the ATLASdetector at the Large Hadron Collider. Events with two reconstructed same-charge leptons (e±e±, e±μ±, and μ±μ±) and two or more jets are analyzed. Production cross sections are measured in two fiducial regions, with different sensitivities to the electroweak and strong production mechanisms. First evidence for W±W±jj production and electroweak-only W±W±jj production is observed with a significance of 4.5 and 3.6 standard deviations, respectively. The measured production cross sections are in agreement with standard model predictions. Limits at 95% confidence level are set on anomalous quartic gauge couplings.
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Physical Description:Online Resource
ISSN:1079-7114
DOI:10.1103/PhysRevLett.113.141803

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