I. Abt

Measurement of [alpha][sub [ital s]] from energy-energy correlations at the [ital Z][sup 0] resonance

We determine the strong coupling [alpha][sub [ital s]] from a comprehensive study of energy-energy correlations (EECs) and their asymmetry (AEECs) in hadronic decays of [ital Z][sup 0] bosons collected by the SLD experiment at SLAC. The data are compared with all four available predictions of QCD calculated up to [ital O]([alpha][sub [ital s]][sup 2]) in perturbation theory, and also with a resummed calculation matched to all four of these calculations. We find large discrepancies between [alpha][sub [ital s]] values extracted from the different [ital O]([alpha][sub [ital s]][sup 2]) calculations. We also find a large renormalization scale ambiguity in [alpha][sub [ital s]] determined from the EECs using the [ital O]([alpha][sub [ital s]][sup 2]) calculations; this ambiguity is reduced in the case of the AEECs and is very small when the matched calculations are used. Averaging over all calculations, and over the EEC and AEEC results, we obtain [alpha][sub [ital s]]([ital M][sub [ital Z]][sup 2])=0.124[sub [minus]0.004][sup +0.003] (expt.) [plus minus]0.009 (theory).

Measurement of the charged multiplicity of [ital Z][sup 0][r arrow][ital b[bar b]] events

Using an impact parameter tag to select an enriched sample of

Measurement of [alpha][sub [ital s]] from jet rates at the [ital Z][sup 0] resonance

Z rightarrow b overline{b}

First Measurement of the Left-Right Charge Asymmetry in Hadronic {ital Z} Boson Decays and a New Determination of sin{sup 2}{ital {theta}}{sup eff}{sub {ital W}}

events, we have measured the difference between the average charged multiplicity of

Improved Measurement of the Left-Right {ital Z}{sup 0} Cross Section Asymmetry

Z rightarrow b overline{b}

MEASUREMENTS OF THE CHARGED MULTIPLICITY OF Z0BB EVENTS

and

Precise measurement of the left-right cross section asymmetry in [ital Z] boson production by [ital e][sup +][ital e][sup [minus]] collisions

Z^0 rightarrow hadrons