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Phys. Rev. D 71, 091108(R) (2005) [7 pages]

Measurement of the pp̅ →Wγ+X cross section at s=1.96 TeV and WWγ anomalous coupling limits

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V. M. Abazov et al. D0 Collaboration
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Received 30 March 2005; published 26 May 2005

The WWγ triple gauge boson coupling parameters are studied using pp̅ →νγ+X(=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 pp̅ →W(γ)+Xνγ+X with ETγ>8 GeV and ΔRγ> 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<Δκγ<0.96 and -0.20<λγ<0.20.

© 2005 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.71.091108
DOI:
10.1103/PhysRevD.71.091108
PACS:
12.15.Ji, 13.40.Em, 13.85.Qk