Limits on<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="italic">WWZ</mml:mi></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="italic">WW</mml:mi><mml:mi>γ</mml:mi></mml:math>Couplings from<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="italic">WW</mml:mi></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><…

F. Abe, M. G. Albrow, S. R. Amendolia, D. Amidei, J. Antoš, C. Anway-Wiese, G. Apollinari, H. Areti, M. Ataç, P. Auchincloss

Abstract

Direct limits are set on WWZ and WWγ three-boson couplings in a search for WW and WZ production with high transverse momentum in pp¯ collisions at s=1.8 TeV, using the Collider Detector at Fermilab. The results are in agreement with the SU(2) × U(1) model of electroweak interactions. Assuming standard model WWγ couplings, the limits are interpreted as direct evidence for a nonzero WWZ coupling at subprocess energies near 500 GeV. Alternatively, assuming identical WWZ and WWγ couplings, bounds −0.11<κ<2.27 and −0.81<λ<0.84 are obtained at 95% C.L. for a form factor scale 1000 GeV.Received 8 March 1995DOI:https://doi.org/10.1103/PhysRevLett.75.1017©1995 American Physical Society

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