Justbefore the preliminary programof Orbis Scientiae 1998 went to press the news in physics was suddenly dominated by the discovery that neutrinos are, after all, massive particles. This was predicted by some physicists including Dr. Behram Kusunoglu, who had apaper published on this subject in 1976 in the Physical Review. Massive neutrinos do not necessarily simplify the physics of elementary particles but they do give elementary particle physics a new direction. If the dark matter content ofthe universe turns out to consist ofneutrinos, the fact that they are massive should make an impact on cosmology. Some of the papers in this volume have attempted to provide answers to these questions. We have a long way to go before we find the real reasons for nature’s creation of neutrinos. Another neutrino-related event was the passing of their discoverer, Fredrick Reines: The trustees of the Global Foundation, members of the Orbis Scientiae 1998, dedicate this conference to Fredrick Reines of the University of California at Irvine. The late Professor Reines was a loyal and active member of these series of conferences on the frontiers of physics and cosmology since 1964. He also sewed as one of the trustees of the Global Foundation for the past three years. Professor Reines discovered the most elusive particle, the neutrino, in 1954. We are proud to say that we recognized the importance of this discovery by awarding him the J.

NEW DIMENSIONS IN ELEMENTARY PARTICLE PHYSICS AND COSMOLOGY summarizes certain results of the author's theoretical research toward developing a mathematically very simple Unified Theory of Elementary Particles and Interactions (UTOEPI.) Here the masses of the particles of the Standard Model, including the Higgs boson (the the socalled God Particle), are directly represented in terms of the interaction. The book introduces a new paradigm of a three-dimensional time, as an essential extension of Einstein's relativity theory. Interrelation between the classical and quantum physics is illustrated. Examples of applications in cosmology and the significance of the neutron decay in the evolution of matter, and of life on the earth, are included.

This is the third edition of a text that is already well established as one of the standard undergraduate books on the subject of elementary particle physics. Professor Hughes has updated the whole text in line with current particle nomenclature and has added material to cover important new developments. There is also a completely new major chapter on particle physics and cosmology, an exciting subject that has become an area of increasing importance in recent years. In this field much can be learned from the way the subject has developed, and so, where this helps its understanding, a historical treatment is used. Unlike other texts on this subject, at all stages the author closely links theoretical developments to the relevant experimental measurements, providing a sound foundation to what might otherwise be a rather abstract subject. He also provides historical background where it will aid comprehension of the material.

Professor Murray Gell-Mann is one of the most influential and brilliant scientists of the twentieth century. His work on symmetries, including the invention of the 'quark', in the 1950s and early 1960s has provided a foundation for much of modern particle physics and was recognised by the award of the Nobel Prize for Physics in 1969. This book is a collection of research articles especially written by eminent scientists to celebrate Gell-Mann's 60th birthday, in September 1989. The main body of contributions are concerned with theoretical particle physics and its applications to cosmology.

This is a collection of lectures on topics in cosmology and elementary particles with emphasis on astrophysics. Delivered by prominent scientists, the lectures give up-to-date and comprehensive treatment of the areas covered. Contents:Pulsars: New Celestial Clocks (D Backer)Gravitation and Early Universe Cosmology (J Barrow)Large Scale Structure and Peculiar Motions in the Universe (R Giovanelli)Precision Tests of the Standard Model and Top Quark Physics (W Marciano)Abelian Instantons, Particle Physics and Cosmology (B Ovrut)Probing the Early Universe: Predictions and Tests (D Schramm)Phase Transitions in the Early Universe: Large Scale Structure and Baryogenesis (N Turok)Semionics: A Possible Theory of High Temperature Superconductivity (A Zee)Mapping the Galaxy Distribution in the Southern Hemisphere (L da Costa)Unified Description of Quark and Lepton Mass Matrices (E Ma) Readership: Cosmologists, astrophysicists and astronomists. keywords:

At least eighty percent of the mass of the universe consists of some material which, unlike ordinary matter, neither emits nor absorbs light. This book collects key papers related to the discovery of this astonishing fact and its profound implications for astrophysics, cosmology, and the physics of elementary particles. The book focuses on the likely possibility that the dark matter is composed of an as yet undiscovered elementary particle, and examines the boundaries of our present knowledge of the properties such a particle must possess.

In this book, the author leads the reader, step by step and without any advanced mathematics, to a clear understanding of the foundations of modern elementary particle physics and cosmology. He also addresses current and controversial questions on topics such as string theory. The book contains gentle introductions to the theories of special and general relativity, and also classical and quantum field theory. The essential aspects of these concepts are understood with the help of simple calculations; for example, the force of gravity as a consequence of the curvature of the space-time. Also treated are the Big Bang, dark matter and dark energy, as well as the presently known interactions of elementary particles: electrodynamics, the strong and the weak interactions including the Higgs boson. Finally, the book sketches as yet speculative theories: Grand Unification theories, supersymmetry, string theory and the idea of additional dimensions of space-time. Since no higher mathematical or physics expertise is required, the book is also suitable for college and university students at the beginning of their studies. Hobby astronomers and other science enthusiasts seeking a deeper insight than can be found in popular treatments will also appreciate this unique book.