Science Record

aaNet

39

Gl.

The corresponding experimental value 1s 58.8 + 2.0:4.19 + 0.42:4.0 + 0.79 = 14:1:0.95, (13) ©

If the following assumption about the coupling constants of strong. interaction 8, = & = §3 = §&5 = §25 (14)

8, = §& = 8 = §5 = 8x,

is made instead of (9), then the branching ratio of the K*-meson decay obtained is:

W tant av: Wataet pray? Wetoutenogy = 12:15:21

which agrees quite well with (13), but not as good as (12). However, the calculated branching ratio of the A-decay then differs widely from the experimental data.

As a whole the calculated results of this note differ from the experimental values at most by a factor 2. Some of the calculated results are in quite good agreement with experiment. As the method of calculation used is rather crude, the over-all degree of agreement with the experiments may be regarded as fairly good. Thus the results of this note give support to the theory of universal weak Fermi interaction proposed by Feynman and Gell-Mann. The detailed calculation of this note will be published elsewhere.

REFERENCES

Feynman, R. P. and Gell-Mann, M. 1958 Phys. Rev. 109, 1755. Sudarshan, G. and Marshak, R. E. 1958 P&ys. Rev. 109, 1860.

Salam, A. 1956 Nucl. Phys. 2, 173.

Gell-Mann, M. 1957 Phys. Rev. 106, 1296.

Gell-Mann, M. and Rosenfeld, A. H. 1957 Annu. Rev. Nuel. Sci. 7, 409.

SS) ss eet nt UW Be WN bes hd ed