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Published December 1, 1955 | public
Journal Article Open

Λ0-Fragment Decay in a Cloud Chamber


The decay in flight of a heavy nuclear fragment is described. The event is most reasonably interpreted as the decay of a Λ0 particle bound to a He3 nucleus, and is similar to examples previously observed in nuclear emulsions. The lifetime of the excited fragment in this single example is 5.4±0.6×10^-10 sec, and the binding energy of the Λ0 to He3 is probably less than 2 Mev.

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©1955 The American Physical Society Received 8 August 1955 Assisted by the joint program of the Office of Naval Research and U.S. Atomic Energy Commission.


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