Ken-iti Matumoto

New Approach to the Strangeness Changing Weak Interaction

The six-body Fermi coupling description of the strangeness changing weak interaction is generalized and results from this approach are analyzed. Several tests of the sixbody coupling are also presented. (C.E.S.)

Intermediary Fields Based on the Lack of the Self-Current Weak Interaction

A concrete model of intermediary fields based on the lack of neutral leptonic current and self-current couplings is presented. It is assumed that all primary weak interactions are realized only by the nonstrange particles but that their coupling fields are different. The lack of all self-current couplings together with the universality of coupling constants requires fields with positive and negative metric in Hilbert space. These requirements yield a simple model that can be interpreted as the intermediary field that causes the strangeness changing weak interactions.

Chapter 3. Mass Formula in the Sakata Model

A mass formula is introduced in the Sakata model and its implications are discussed. The revised form of the mass formula is developed and the energies of full symmetry quantum states, which are represented by the basis vectors of irreducible representations of U, are evaluated in order to compare the theoretical predictions thus obtained with experimental indications. Another approach is suggested to find the masses of particle states of the full symmetry theory.