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. RI Vucinic, Dejan/C-2406-2008; Chiarelli, Giorgio/E-8953-2012; Azzi, Patrizia/H-5404-2012

LIMITS ON WWZ AND WW-GAMMA COUPLINGS FROM WW AND WZ PRODUCTION IN P(P)OVER-BAR COLLISIONS AT ROOT-S=1.8 TEV

PIACENTINO, Giovanni Maria;
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. RI Vucinic, Dejan/C-2406-2008; Chiarelli, Giorgio/E-8953-2012; Azzi, Patrizia/H-5404-2012
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11695/85
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