The Second Workshop on Grand Unification: University of Michigan, Ann Arbor April 24-26, 1981

ISBN-13: 9780817630553 / Angielski / Miękka / 1981 / 322 str.

Leveille;Sulak;Unger

Opis

Recently there has been rapid progress towards understanding the separate theories of the strong, weak and electromagnetic inter- actions within the framework of the standard SU(3) x SU(2) x U(l) model. The purpose of the Second Workshop on Grand Unification was to discuss the physics beyond the standard model and the major topic was grand unified theories which unify the strong, weak and electromagnetic sectors. Grand unified theories are presently being used to calculate experimentally accessible quantities such as the proton lifetime and nucleon decay branching ratios. Meanwhile, experiments are currently being performed, and new, dedicated experiments mounted, to measure these quantities. Reports on these experimental and theoretical activities occupied much of the workshop. Furthermore, since grand unified theories allow one to extrapolate the behavior of the universe back to the first instants after the big bang, their cosmological implications and the constraints on these theories from cosmology were of great interest at the workshop. The conference opened with a keynote address by S. L. Glashow in which he discussed among other topics baryon minus lepton number conservation, neutrino masses and a neutrino-free universe. To maximize the interplay between theorists and experimentalists, theoretical and experimental talks were interleaved. An experimental highlight of the workshop was the presentation by S. Miyake of three candidate events for proton decay.

Spis treści

A Neutrino-Free Universe.- The Kolar Gold Field Nucleon Decay Experiment: A Status Report.- Search For Nucleon Decay: The Deep Underground Water Cerenkov Detector and the Homestake Tracking Spectrometer.- Experiments at the Soudan Mine: Operating and Proposed.- The Mont Blanc Fine Grain Experiment on Nucleon Stability..- A Fine Grain Detector in the Frejus Tunnel.- Status Report on Harvard, Purdue, Wisconsin Proton Decay Experiment.- Irvine-Michigan-Brookhaven (I. B. M.) Nucleon Decay Search: Status Report.- Review of Neutron-Antineutron Oscillation Experiments.- Limitations on Proton Decay Modes from a Passive Detection Scheme.- Ultimate Limits to Proton Decay Searches.- Theoretical Expectations for Proton Decay.- Su (5) Theory vs. Experiment.- Effective Lagrangian and Effective Parameters in Grand Unified Theories.- Thresholds in Particle Physics.- The TeV Picture.- Complexions of Baryon and Lepton Number Violations Within Maximal Symmetries.- Grand Unification and the Fundamental Problems of Classical Cosmology.- Constraints on Grand Unified Theories from Cosmological Baryon Asymmetry.- Fixed Points: Fermion Mass Predictions.- Fermion Masses: Another Look.- Petite Unification: An Alternative Viewpoint.- Supersymmetric Technicolor.- Supersymmetric Guts.- Conference Summary.- Workshop Program.- Local Organizing Committee.- Advisory Committee.- List of Participants.