The purpose of this workshop was to explore the potential of present (TRISTAN, LEP1, SLC) and future (LEP2, NLC) e⁺e⁻ colliding-beam experiments to test the standard model of electroweak and strong interactions with high precision and to probe new physics.

This volume gathers the latest experimental results from HERA and captures new trends in HERA phenomenology. The articles are by experts for experts, but are suitable for a mixed readership of both theoreticians and experimentalists. H1 members cover ZEUS results and vice versa. The book points out existing discrepancies between experimental data and theoretical predictions and identifies projects to be undertaken in the future.

This review gives a brief discussion of the structure of the Standard Model and its quantum corrections. The predictions for the vector boson masses, the neutrino scattering cross-sections and the Z0 resonance observables are presented. The influence of virtual new physics effects on the observables is discussed with the minimal supersymmetric Standard Model taken as an example. Experimental measurements of electroweak observables are described with reference to studies performed at the e+e- collider LEP at energies close to the Z0 peak. The theoretical predictions are compared with experimental data and their implications for the Standard Model are discussed.

High precision measurements of weak neutral current and charged current processes and of the properties of the Z and W bosons have established the standard electroweak model as correct down to a distance scale of 10-16 cm, and are a sensitive probe of possible underlying physics. In this book, all aspects of the program are considered in detail, including the structure of the standard model, radiative corrections, high precision experiments, and their implications. The major classes of experiments are surveyed, covering the experiments themselves, the data analysis, results, and prospects.This volume is a detailed reference for theoretical and experimental researchers, as well as an introductory text for advanced students.