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During July 1991. a group of 99 physicists from 57 laboratories in 27 countries met in Erice for the 29th Course of the International School of Subnuclear Physics. The countries represented were: Algeria. Argentina. Austria. Brazil. Canada. China. France. Germany. Greece. India. Ireland. Israel. Italy. New Zealand. Norway. Pakistan. Poland. Portugal. Rumania. Spain. Sweden. Switzerland. Thailand. Turkey. The Union of Soviet Socialist Republics. the United Kingdom. and the United States of America. The School was sponsored by the European Physical Society (EPS). the Italian Ministry of Education (MPI). the Italian Ministry of University and Scientific Research. the Sicilian Regional Government (ERS). and the Weizmann Institute of Science. The opening lecture of the School was given by Professor Lev Okun. A few remarks are in order. In the pre-Gorbachev era. Professor Okun's case was the most difficult: in spite of many invitations he was not allowed to come and lecture at Erice. Nowadays the hard times have nearly been forgotten. It is with pleasure that I recall here a discussion I had with my friend Lev Okun in my house during one of his rare visits to CERN. The after-dinner topic was Galileo Galilei and his great discovery; i. e . - the equality between gravitational and inertial masses - a discovery that we are celebrating now. four hundred years later. Here is a synthesis of Professor Okun's position: given a massive particle. the only quantity we should consider when talking about masses.
Sommario
Opening Lecture.- The Problem of Mass: From Galilei to Higgs.- Quantum Chromo Dynamics.- QCD Phenomenology: Jet Rates and Truncated Parton Cascades for Massive Hadron Production.- Theoretical Lectures from 10 to 200 TeV.- The Standard Model and Beyond.- Do Weak Interactions become Strong at High Energy?.- Geometry and Quantum Symmetries of Superstring Vacua.- A Duality Between Strings and Fivebranes.- Review Lectures.- Theoretical Implications of Precision Electroweak Data.- Novel Neutrino Physics.- A Solution to the Time Varying Solar Neutrino Problem.- Searching for the Higgs Boson at a Photon-Photon Collider.- Experimental Physics at the Highest Energy (in this Century!).- The Future of High Energy Physics.- The SSC Project and Experimental Program.- Maximizing the Luminosity of Eloisatron, a Hadron Supercollider at 100 TeV per Beam.- New Detectors for Supercolliders: LAA.- Closing Ceremony.- Prizes and Scholarships, etc.- Participants.
