Direct limits are set on WWZ and WW gamma three-boson couplings in a search for WW and WZ production with high transverse momentum in pp collisions at root s = 1.8 TeV, using the Collider Detector at Fermilab. The results are in agreement with the SU(2) X U(1) model of electroweak interactions. Assuming standard model WW gamma couplings, the limits are interpreted as direct evidence for a nonzero WWZ coupling at subprocess energies near 500 GeV. Alternatively, assuming identical WWZ and WW gamma couplings, bounds -0.11 < kappa < 2.27 and -0.81 < lambda < 0.84 are obtained at 95% C.L. for a form factor scale 1000 GeV.

Limits On Wwz and Ww-gamma Couplings From Ww and Wz Production In P(p)over-bar Collisions At Root-s=1.8 Tev

BISELLO, DARIO;BUSETTO, GIOVANNI;LUCCHESI, DONATELLA;MARIOTTI, MOSE';
1995

Abstract

Direct limits are set on WWZ and WW gamma three-boson couplings in a search for WW and WZ production with high transverse momentum in pp collisions at root s = 1.8 TeV, using the Collider Detector at Fermilab. The results are in agreement with the SU(2) X U(1) model of electroweak interactions. Assuming standard model WW gamma couplings, the limits are interpreted as direct evidence for a nonzero WWZ coupling at subprocess energies near 500 GeV. Alternatively, assuming identical WWZ and WW gamma couplings, bounds -0.11 < kappa < 2.27 and -0.81 < lambda < 0.84 are obtained at 95% C.L. for a form factor scale 1000 GeV.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/2520016
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