Physics welcomes the idea that space contains energy whose gravitational effect
approximates that of Einstein's cosmological constant, Λ; today the concept is termed dark …

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The standard model of hot big-bang cosmology requires initial conditions which are
problematic in two ways:(1) The early universe is assumed to be highly homogeneous, in …

We identify a new cosmological problem for models which solve the strong CP puzzle with
an invisible axion, unrelated to the domain wall problem. Because the axion is very weakly …

In this paper we survey methods by which supersymmetry (or other new physics) could be
observed in experiments at present and future accelerators. We review some of the …

A number of properties of possible baryon-and lepton-nonconserving processes are shown
to follow under very general assumptions. Attention is drawn to the importance of measuring …

We argue that the existence of fundamental scalar fields constitutes a serious flaw of the
Weinberg-Salam theory. A possible scheme without such fields is described. The symmetry …

The second part of this review is devoted to the Higgs sector of the Minimal Supersymmetric
Standard Model. The properties of the neutral and charged Higgs bosons of the extended …

An analysis is presented of the physical implications of theories in which the masses of the
intermediate vector bosons arise from a dynamical symmetry breaking. In the absence of …

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 …