# Measurement of trilinear gauge boson couplings from at {\boldmath$\sqrt{s}=1.96$} TeV

Abstract : We present a direct measurement of trilinear gauge boson couplings at $\gamma WW$ and $ZWW$ vertices in $WW$ and $WZ$ events produced in \pp collisions at \tevE. We consider events with one electron or muon, missing transverse energy, and at least two jets. The data were collected using the D0 detector and correspond to 1.1 \ifb of integrated luminosity. Considering two different relations between the couplings at the $\gamma WW$ and $ZWW$ vertices, we measure these couplings at 68% C.L. to be $\kappa_{\gamma}=1.07^{+0.26}_{-0.29}$, $\lambda =0.00^{+0.06}_{-0.06}$ and $g_{1}^{Z}=1.04^{+0.09}_{-0.09}$ in a scenario respecting $SU(2)_L\otimes U(1)_Y$ gauge symmetry and $\kappa =1.04^{+0.11}_{-0.11}$ and $\lambda =0.00^{+0.06}_{-0.06}$ in an "equal couplings" scenario.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00407995
Contributor : Emmanuelle Vernay <>
Submitted on : Tuesday, July 28, 2009 - 11:37:32 AM
Last modification on : Saturday, May 22, 2021 - 3:33:47 AM

### Citation

V.M. Abazov, B. Abbott, M. Abolins, B.S. Acharya, M. Adams, et al.. Measurement of trilinear gauge boson couplings from at {\boldmath$\sqrt{s}=1.96$} TeV. Physical Review D, American Physical Society, 2009, 80, pp.053012. ⟨10.1103/PhysRevD.80.053012⟩. ⟨in2p3-00407995⟩

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