Melvin Schwartz helped develop accelerator neutrino beams and coauthored the discovery of distinct electron and muon neutrino flavors. Letting secondary mesons decay and shielding the charged products supplied a penetrating beam. Its interactions revealed predominantly muons, connecting the production process with the flavor of the outgoing lepton.[ref]
Observation of High-Energy Neutrino Reactions and the Existence of Two Kinds of Neutrinos by G. Danby and others. 1962, meson-decay beam, shielding and muon-producing reactions
A physicist who held professorships at Columbia and Stanford.[ref]
Professional profile of Melvin Schwartz. Independent professional identity
Portrait of Melvin Schwartz
. AIP Emilio Segrè Visual Archives; American Institute of Physics (AIP); existing Commons crop by Artem.G. American Institute of Physics attribution-only permission, via Wikimedia Commons. Source.
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