Analysis of t-b-W and t-t-Z couplings from CLEO and LEP/SLC data

We update the constraints on anomalous dimension four t-b-W and t-t-Z couplings by using CLEO b→sγ and LEP/SLC precision Z-pole data. It is found that the data imposes very stringent bounds on them. Moreover, the 2σ pull from SM predictions of ALR(hadrons), Ab and AFB(b) have little chance of being explained by the strongly constrained anomalous couplings.