Grand unified theories, in which the strong and electroweak interactions are embedded into
an underlying theory with a single gauge coupling constant, are reviewed. A detailed …

The discovery of asymptotic freedom has opened up the possibility of extracting new sorts of
detailed, dynamical consequences from a strongly interacting quantum field theory. The …

It is shown that a wide class of non-Abelian gauge theories have, up to calculable
logarithmic corrections, free-field-theory asymptotic behavior. It is suggested that Bjorken …

An explicit calculation shows perturbation theory to be arbitrarily good for the deep
Euclidean Green's functions of any Yang-Mills theory and of many Yang-Mills theories with …

We investigate the possibility that radiative corrections may produce spontaneous symmetry
breakdown in theories for which the semiclassical (tree) approximation does not indicate …

This book is a modern pedagogic introduction to the ideas and techniques of quantum field
theory. After a brief overview of particle physics and a survey of relativistic wave equations …

Asymptotically free gauge theories of the strong interactions are constructed and analyzed.
The reasons for doing this are recounted, including a review of renormalization-group …

Spontaneous symmetry breaking at finite temperature is studied. We show that for the class
of theories discussed, symmetry is restored above a critical temperature β c− 1. We …

A theory of spontaneous T violation is presented. The total Lagrangian is assumed to be
invariant under the time reversal T and a gauge transformation (eg, the hypercharge gauge) …

We examine some problems associated with the low-momentum behavior of gauge theories
and other renormalizable field theories. Our main interest is in the infrared structure of …