Limits on anomalous WWγ couplings from pp → Wγ + X events at √s = 1.8 TeV

Universidad de Buenos Aires, Buenos Aires, Argentina, DØ Collaboration

Research output: Contribution to journalArticle

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Abstract

We have measured the WW? gauge boson coupling parameters using pp → ℓνγ + X (ℓ = e,μ) events at √s=1.8 TeV. The data, corresponding to an integrated luminosity of 92.8pb-1, were collected using the DØ detector at the Fermilab Tevatron Collider. The measured cross section times branching ratio for pp → Wγ + X with pγ T > 10 GeV/c and Rℓν > 0.7 is 11.3+1.7 -1.5±1.5 pb, in agreement with the standard model prediction. The 1 degree of freedom 95% confidence level limits on individual CP-conserving parameters are -0.93 < Δκ < 0.94 and -0.31 < λ < 0.29. Similar limits are set on the CP-violating coupling parameters.

Original languageEnglish
Pages (from-to)3634-3639
Number of pages6
JournalPhysical Review Letters
Volume78
Issue number19
DOIs
Publication statusPublished - 1997 Jan 1
Externally publishedYes

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confidence
bosons
degrees of freedom
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cross sections
predictions

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  • Physics and Astronomy(all)

Cite this

Universidad de Buenos Aires, Buenos Aires, Argentina, & DØ Collaboration (1997). Limits on anomalous WWγ couplings from pp → Wγ + X events at √s = 1.8 TeV. Physical Review Letters, 78(19), 3634-3639. https://doi.org/10.1103/PhysRevLett.78.3634

Limits on anomalous WWγ couplings from pp → Wγ + X events at √s = 1.8 TeV. / Universidad de Buenos Aires, Buenos Aires, Argentina; DØ Collaboration.

In: Physical Review Letters, Vol. 78, No. 19, 01.01.1997, p. 3634-3639.

Research output: Contribution to journalArticle

Universidad de Buenos Aires, Buenos Aires, Argentina & DØ Collaboration 1997, 'Limits on anomalous WWγ couplings from pp → Wγ + X events at √s = 1.8 TeV', Physical Review Letters, vol. 78, no. 19, pp. 3634-3639. https://doi.org/10.1103/PhysRevLett.78.3634
Universidad de Buenos Aires, Buenos Aires, Argentina, DØ Collaboration. Limits on anomalous WWγ couplings from pp → Wγ + X events at √s = 1.8 TeV. Physical Review Letters. 1997 Jan 1;78(19):3634-3639. https://doi.org/10.1103/PhysRevLett.78.3634
Universidad de Buenos Aires, Buenos Aires, Argentina ; DØ Collaboration. / Limits on anomalous WWγ couplings from pp → Wγ + X events at √s = 1.8 TeV. In: Physical Review Letters. 1997 ; Vol. 78, No. 19. pp. 3634-3639.
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abstract = "We have measured the WW? gauge boson coupling parameters using pp → ℓνγ + X (ℓ = e,μ) events at √s=1.8 TeV. The data, corresponding to an integrated luminosity of 92.8pb-1, were collected using the D{\O} detector at the Fermilab Tevatron Collider. The measured cross section times branching ratio for pp → Wγ + X with pγ T > 10 GeV/c and Rℓν > 0.7 is 11.3+1.7 -1.5±1.5 pb, in agreement with the standard model prediction. The 1 degree of freedom 95{\%} confidence level limits on individual CP-conserving parameters are -0.93 < Δκ < 0.94 and -0.31 < λ < 0.29. Similar limits are set on the CP-violating coupling parameters.",
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