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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. ... show 1 more
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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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