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 (US)
Pages (from-to)3634-3639
Number of pages6
JournalPhysical review letters
Volume78
Issue number19
DOIs
StatePublished - Jan 1 1997

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    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