Hans Bethe - Resonance for neutral pi mesons (113/158)
1,282 views · Published 26 June 2017 · 1:48 · Indexed 31 October 2026
Channel: Web of Stories - Life Stories of Remarkable People · 2017 · Science & Technology
To hear more of Hans Bethe’s stories, go to the playlist: https://www.youtube.com/watch?v=LvgLyzTEmJk&list=PLVV0r6CmEsFyUDSroBQVEcbnNud7I9xom German-born theoretical physicist Hans Bethe (1906-2005) was one of the first scientists to join the Manhattan Project, later strongly advocating nuclear disarmament. In 1967, he was awarded the Nobel Prize in Physics for his theory of stellar nucleosynthesis. [Listener: Sam Schweber; date recorded: 1996] TRANSCRIPT: Well, our role at the time was to produce mesons, pi mesons, by the interaction of electrons with nuclei, and indeed the Cornell machine was able to do that. And it showed that the interaction was increasing with electron energy, and it looked as if we were building up to a resonance. But we weren't quite there. But Berkeley, which was building a synchrocyclotron using Macmillan's ideas, got going a little earlier and I believe it was Wilson giving advice to Macmillan just how to get his cyclotron really operating, and then that cyclotron scooped us in produce... in showing the resonance in the interaction between pi mesons and protons. That was work done by Macmillan, Alvarez, and Panofsky, which showed the resonance for neutral pi mesons.
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