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
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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
2010-06Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear ScienceJournal
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