DIBOSON PRODUCTION CROSS SECTION AT THE TEVATRON

B-1348 Louvain-la-Neuve, Belgium Recent results in diboson production in diverse final states from the CDF and D0 experiments in pp ̄ collisions at s = 1.96 TeV at the Tevatron are reviewed. Special emphasis is given to the recent combined CDF and D0 measurement of WZ and ZZ production in final states with b-tagged jets. Assuming the ratio of the production cross sections σ(WZ) and σ(ZZ) as predicted by the standard model, the sum of the WZ and ZZ cross sections is measured to be σ(WZ+WZ) = 4.47±0.64(stat.)+0.73 −0.72 (syst.) pb. This is consistent with the standard model prediction and corresponds to a significance of 4.6 standard deviations above the background-only hypothesis.