On the Universality of the Weak Boson-Fermion Interaction

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With the aim to investigate the possibility of reducing the complicated interactioru: between various sorts of elementary particles to some kind of interactions which have certain primary and universal character, analysis is made on the weak interactions between Eosons and Fermions which appear in the recent high energy experiments. It is suggested that there might exist one type of interaction which seems to have desired property. That is, when we set up weak interaction of the type g;jarsr~'-cfJbfJJ~.f{Jc or g¢ar~'-cfJbfJ~'-f{Jc between any pair of spinor fields C/Ja. C/Jb (spin 1/2) and any Boson field f{Jc (spin 0), nearly unique value of the couplir.g constant g seems to be consistent with so many remarkable reactions ( § 2, § 3). Assuming the universal character of this interaction discussions are made on the consistency of the coexistence of this interaction with other similar ones such as universal Fermi interaction etc. (§ 4) and on the possible reasons for the necessity of its introduction (§ 5). 1n this connection we also briefly examine the problem whether the newly found spinor fields (A· particle and possibly &·meson) may be included in the universal Fermi interaction scheme consistently (§ 3, § 4 and Appendix IV). As an example of the selection principles which forbid unwanted processes, we take the conservation law of the Fermion numbers to test its workability (Appendix I).

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