The hyperon decays and the structure of interactions

Abstract

Experiments have shown that, in cases of the weak fermion interactions and π-decay interaction, the coupling constant for the parity conserving term and that for the parity non-conserving term are almost equal to each other. Assuming that this is the situation in every case of the weak interactions, we show that the Λ-decay interaction is of the derivative (vector and axial vector) coupling type. This belongs to the 2nd kind interactions, as do the weak fermion interactions. We discuss various features which stem from the basic assumption that all the weak interactions violating the parity conservation belong to the 2nd kind. A result coming from this basic assumption is the universality of the coupling constants for the weak interactions. The two-neutrino decay of K is forbidden as it should be. The situation for the processes π, K → e+ ν and e+ ν+ γ is much better than in the case of the weak interactions of the 1st kind. A dimensional analysis is used to obtain information on the strength of interactions in each energy region. It suggests that the weak interactions belonging to the 2nd kind predominate over all the other interactions in the high energy region corresponding to a scale smaller than 10 −20 cm. The violation of the parity conservation may be due to some feature of space for such small distances. It is suggested that multiple production of leptons may occur at extremely high energies. The high energy behaviour of the strong interactions like the π-nucleon coupling is briefly discussed; the nucleon Compton wave-length may characterize a region where the strong interactions behave in a way different from ordinary notions. In this sense, we may meet various strata of nature in high energy regions.