New Phenomena in Subnuclear Physics

In July 1975, a significant gathering of 122 physicists from 68 laboratories across 27 countries took place in Erice for the 13th Course of the International School of Subnuclear Physics. Sponsored by various prestigious organizations, the event highlighted groundbreaking discoveries in particle physics, including findings from the MIT-BNL and SLAC SPEAR groups, and notable observations by Carlo Rubbia in high-energy neutrino interactions. The highlight was the discovery of a new particle, Pc, reported by B. Wiik, marking a pivotal moment in the field.