K01 - K02 mass difference and the boson-pole approximation in strangeness violating non-leptonic weak processes

An Approach to the Non-Leptonic Decays of Hyperons

“…We shall examine this result in connection with the problem of K1°-K2° mass difference. The value obtained here is seen to be about one order larger than 1.2 X 10-16 which was obtained previously under the condition that the mass difference is given only by one-pion-pole contribution 18. l This would mean that the 1}-meson pole has to be further taken into account which cancels partially or excessively the contribution from the pion pole.…”

Pole Approximation to the Decays of the - Particle ( =1680 MeV)

“…Therefore, it is concluded that g zz7r should be small and of the same sign as that of UNN7f. Fixing the absolute magnitudes of the weak couplings by the decay rate of A~prc-, we have tabulated the numerical values in case of the solution (i)A.As for the K-rc transition strength, we adopt the two values by Oneda et al6 > and Iwao,7 ) …”