Abstract
The last two months have been very exciting ones in elementary particle physics. They have been filled with the most rapid and unexpected discoveries that I can recall. The highlight of this period is undoubtedly the finding of very narrow boson resonances, 1–4 the ψ’s at 3.1 and 3.7 GeV.
Work supported by Energy Research and Development Administration.
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References
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Gilman, F.J. (1975). Electron-Positron Annihilation and the Structure of Hadrons. In: Perlmutter, A., Widmayer, S.M. (eds) Theories and Experiments in High-Energy Physics. Studies in the Natural Sciences. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-4464-3_3
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