The purpose of this meeting is to discuss recent experiments on very energetic neutrinos and to bring together people who are working in the subject either with the artificial sources provided by the great accelerators, or with the flux of high energy neutrinos provided by the cosmic radiation. During the past five years very important advances have been made with the recognition of two types of neutrinos, the electron neutrino and the muon neutrino, both of spin ½ , and both, so we believe, of zero rest-mass. In spite of the very weak interaction of these particles with matter, it has been found possible to demonstrate that the two types produce different effects and some of the most important results of their interactions with neutrons and protons have been clearly demonstrated. The intensities of the neutrino beams so far generated by the machines are such that the experiments are among the most exacting in physics, and the limitation on the energy of the particles has had the consequence that it has been possible to put only an upper limit of about 3 GeV on the mass of the heavy boson through which, so it is speculated, the field of the weak interactions is mediated.
Search for Muon-Neutrino to Electron-Neutrino Transitions in MINOS
