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Measurement of the W+W- Production Cross Section and Search for Anomalous WWγ and WWZ Couplings in pp[over-bar] Collisions at [sqrt]s=1.96  TeV

Author(s)
Paus, Christoph M. E.; Goncharov, Maxim; Gomez-Ceballos, Guillelmo; Makhoul, Khaldoun; Bauer, Gerry P
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Alternative title
Measurement of the W+W- Production Cross Section and Search for Anomalous WWγ and WWZ Couplings in pp̅ Collisions at √s=1.96  TeV
Terms of use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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Abstract
This Letter describes the current most precise measurement of the W boson pair production cross section and most sensitive test of anomalous WWγ and WWZ couplings in pp[over-bar] collisions at a center-of-mass energy of 1.96 TeV. The WW candidates are reconstructed from decays containing two charged leptons and two neutrinos. Using data collected by the CDF II detector from 3.6  fb[superscript -1] of integrated luminosity, a total of 654 candidate events are observed with an expected background of 320±47 events. The measured cross section is sigma(pp[over-bar] -->W+W-+X)=12.1±0.9(stat)[subscript -1.4]+1.6(syst)  pb, which is in good agreement with the standard model prediction. The same data sample is used to place constraints on anomalous WWγ and WWZ couplings.
Date issued
2010-06
URI
http://hdl.handle.net/1721.1/57477
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
CDF Collaboration et al. “Measurement of the W+W- Production Cross Section and Search for Anomalous WW gamma and WWZ Couplings in pp-bar Collisions at s=1.96 TeV.” Physical Review Letters 104.20 (2010): 201801. © 2010 The American Physical Society.
Version: Final published version
ISSN
0031-9007

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