First Workshop on Grand Unification: New England Center University of New Hampshire April 10–12, 1980

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Birkhäuser Boston, 1980 - Science - 370 pages
This workshop held at the New England Center provided a timely opportunity for over 100 participants to gather in a unique environment and discuss the present status of the unification of strong and electroweak forces. One reason for the timeliness was perhaps that experiments of the seventies had already lent confirmation to the separate theories of strong and of electroweak forces, so that for the eighties it now seems especially compelling to attempt the grand unification of these two forces. Also, the planned experiments to search for proton decay and the new experiments which are suggestive, though not yet conclusive, of non-zero neutrino rest masses add further stimulus to the theory. Thus, the workshop provided an ideal forum for exchange of ideas amongst active physicists. The presentations at the workshop covered the present status of both theory and experiment with a strong interplay. Also, there were presentations from the discipline of astrophysics which is becoming very intertwined with that of high-energy physics especially when in the latter one is addressing energies and temperatures that were extant only in the first nanosecond of the universe. On experiment, we heard a comprehensive coverage of the four United States proton decay experiments. The Brookhaven-Irvine-Michigan experiment in the Morton Salt Mine at Fairport Harbor, Ohio was discussed by LARRY SULAK, while DAVID WINN talked on the Harvard-Purdue-Wisconsin effort in the Silver King Mine, Utah. MARVIN MARSHAK and RICHARD STEINBERG described respectively the Soudan Mine, Minnesot~ and the Homestake Mine, South Dakot~experiments.

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Contents

WELCOME
1
GRAND UNIFIED THEORIES WITHOUT SUPERHEAVY MAGNETIC MONOPOLES
9
SYMMETRY BREAKING PATTERNS FOR UNITARY AND ORTHOGONAL GROUPS
23
Copyright

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About the author (1980)

Sheldon Lee Glashow grew up in New York City and graduated from Bronx High School of Science, where he and Steven Weinberg were classmates. Glashow received his Ph.D. in 1958 from Harvard University. While a student at Harvard, Glashow studied with Julian Schwinger, a pioneer of quantum electrodynamics who had become interested in the weak interaction and its possible connection with the electromagnetic interaction. In 1961 Glashow took the first step in unifying these interactions. It was finally accomplished in 1967 by Steven Weinberg and Abdus Salam, and in 1979 all three received a Nobel Prize in physics for developing a theory that mathematically and theoretically unifies the weak force and electromagnetic force of the atomic nucleus. In 1970 Glashow and two collaborators proposed the existence of the charm quark; several years later, physicists discovered particles that contain charm quarks and antiquarks. The grand unified theory that links the strong and electroweak interactions, which Glashow and Howard Georgi devised in 1974, accounts for many otherwise unexplained observations. Since 1979 Glashow has also been on the Harvard faculty, where he occupied the Eugene Higgins Chair of Physics.

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