ABSTRACT
Electroweak theory – sometimes referred to as the Glashow-Salam-Weinberg model – is a model that unifies weak and electromagnetic interactions. The first paper on unification of electromagnetic and weak interactions by Glashow in 1961 required such neutral interactions, and in 1968 Glashow’s model was modified by Weinberg and Salam to include a physical mechanism that made the force carriers massive. Neutral currents were first postulated by Bludman in 1958, shortly after the W -boson was proposed as the force carrier underlying the weak interactions. Andre Lagarrigue, Andre Rousset and Paul Musset worked out a proposal for a neutrino experiment that aimed to increase the event rate by an order of magnitude, which meant building a large heavy-liquid bubble chamber. A number of attempts were made to describe the weak interactions using a Yang-Mills theory once it became clear from experiments on parity violation in the 1950s that the weak nuclear force was quite different from the strong one.
