Measurement of the $WW γ$ Gauge Boson Couplings in $p \bar{p}$ Collisions at $\sqrt{s} = 1.8$ TeV

Publisher Website

7 August 1995

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 75 (6) , 1034-1039
https://doi.org/10.1103/physrevlett.75.1034

Abstract

The

WW γ

gauge boson couplings were measured using

p \bar{p} \to ℓ ν γ + X

(

ℓ = e, μ

) events at

\sqrt{s} = 1.8

TeV observed with the D0 detector at the Fermilab Tevatron Collider. The signal, obtained from the data corresponding to an integrated luminosity of

13.8 {pb}^{- 1}

, agrees well with the standard model prediction. A fit to the photon transverse energy spectrum yields limits at the

95 %

confidence level on the

CP

-conserving anomalous coupling parameters of

- 1.6 < Δ κ < 1.8

(

λ = 0

) and

- 0.6 < λ < 0.6

(

Δ κ = 0

). Similar limits are obtained for the

CP

-violating coupling parameters.

Keywords

All Related Versions

Version 1, 1995-05-12, ArXiv

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