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 couplings from WW and WZ production in pp collisions at s=1.8 TeV
DONATI, SIMONE;PUNZI, GIOVANNI;
1995-01-01
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.File in questo prodotto:
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