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Published November 1, 1958 | public
Journal Article Open

Nature of the Li8 Beta-Decay Interaction


It has been established in the preceding letter [1] that the spin and parity of Li8 are 2+, and that the beta decay of the 2+ excited state of Be8 proceeds at least 90% of the time by a Gamow-Teller transition. With the spin sequence2+-2+-0+, a measurement of the recoil momentum from the electron and antineutrino, perpendicular to the direction of the alpha breakup, distinguishes vector (V) from scalar (S) interactions from each other and from axial vector (A) and tensor (T) interactions, but does not allow a distinction between A and T.

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©1958 The American Physical Society. Received 6 October 1958. It is a pleasure to acknowledge our indebtedness to R.F. Christy, R.P. Feynman, M. Gell-Mann, and B. Stech for many helpful discussions. Supported in part by the joint program of the Office of Naval Research and the U.S. Atomic Energy Commission.


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