M. Gell-Mann

Theory of the Fermi Interaction

R. P. Feynman and M. Gell-Mann
Physical Review
Sep 16 1957

Feynman calls for He6 experiment to be reviewed
Classic VA paper beat Marshak-Sudarshan to publication.


At the present time several beta-decay experiments seem to be in disagreement with one another. Limiting ourselves to those that are well established, we find that the most serious disagreement with our theory is the recoil experiment in He-6 of Rustad and Ruby x indicating that the T interaction is more likely than the A. Further check on this is obviously very desirable. Any experiment indicating that the electron is not 100% left polarized as x for any transition allowed or forbidden, would mean that (8) and (9) are incorrect.

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