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Measurement of the pp-bar→Wγ+X cross section at s√=1.96 TeV and WWγ anomalous coupling limits
Baringer, Philip S. Bean, Alice Coppage, Don Gardner, J. Hensel, Carsten Christofek, L. Wilson, Graham Wallace Abazov, V. M. Abbott, B. Abolins, M.
Baringer, Philip S.
Bean, Alice
Coppage, Don
Gardner, J.
Hensel, Carsten
Christofek, L.
Wilson, Graham Wallace
Abazov, V. M.
Abbott, B.
Abolins, M.
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Abstract
The WWγ triple gauge boson coupling parameters are studied using pp-bar→ℓνγ+X(ℓ=e,μ) events at s√=1.96 TeV. The data were collected with the D0 detector from an integrated luminosity of 162 pb(−1) delivered by the Fermilab Tevatron Collider. The cross section times branching fraction for pp-bar→W(γ)+X→ℓνγ+X with E(γ)(T)>8 GeV and ΔR(ℓγ)> 0.7 is 14.8±1.6(stat)±1.0(syst)±1.0(lum) pb. The one-dimensional 95% confidence level limits on anomalous couplings are −0.88<Δ(κγ)<0.96 and −0.20<λ(γ)<0.20.
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This is the publisher's version, also available electronically from http://journals.aps.org/prd/abstract/10.1103/PhysRevD.71.091108.
Date
2005-05-26
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American Physical Society
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Baringer_5-26-2005.pdf
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V. M. Abazov et al. (D0 Collaboration). (2005). "Measurement of the pp-bar→Wγ+X cross section at s√=1.96 TeV and WWγ anomalous coupling limits." Physical Review D, 71(9):091108. http://dx.doi.org/10.1103/PhysRevD.71.091108