Elsevier

Physics Letters B

Volume 79, Issues 4–5, 4 December 1978, Pages 359-362
Physics Letters B

Search for second-class currents: Measurement of the β-γ directional correlation in the A = 20 system

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Abstract

Beta-gamma directional correlation measurements performed on the mirror β-decays of 20Na and 20F are found compatible with the absence of second-class currents. The corresponding amplitude is at most 12% of that for weak magnetism. For the time part of the first-class axial amplitude, the experiment yields a value about two times that calculated on the basis of the impulse approximation.

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  • Cited by (0)

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    In partial fulfilment of the requirements of a Ph.D. Thesis,

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    Chercheur qualifié F.N.R.S.

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