Vector Boson Pair Production and Trilinear Gauge Boson Couplings - Results from the Tevatron

Direct measurements of vector boson pair production processes and trilinear gauge boson couplings have been conducted by the CDF and DØ Collaborations. Preliminary results from searches for anomalous WW/WZ → μν jet jet and WZ → eeeν production are presented. 95% CL anomalous coupling limits from previously published DØ results are −0.20 < λ < 0.20 (∆κ = 0) and −0.30 < ∆κ < 0.43 (λ = 0) for Λ = 2000 GeV where the WWγ couplings are assumed to equal the WWZ couplings. Combined DØ + LEP experiment anomalous coupling limits are presented for the first time. 95% CL limits are −0.16 < λγ < 0.10 (∆κ = 0) and −0.15 < ∆κγ < 0.41 (λ = 0) under the assumption that the couplings are related by the “HISZ” constraints. 95% CL anomalous ZZγ and Zγγ coupling limits from DØ are |h30| < 0.36 (h40 = 0) and |h40| < 0.05 (h30 = 0) for Λ = 750 GeV. CDF reports the first observation of a ZZ event. Prospects for Run II are discussed. —— Submitted to the Proceedings of ICHEP 98 XXIX International Conference on High Energy Physics UBC, Vancouver, B.C. Canada July 23-29, 1998