Universal theory of semi-weak interactions

Abstract

A universal theory of semi-weak interactions is proposed on the basis of a new baryon-lepton symmetry principle and the conservation of a new quantum numberX, the « weak hypercharge ». The universality of the theory is achieved by coupling two intermediate charged vector bosons of different mass andX assignment to the strangeness-conserving and strangeness-changing currents. Acceptance of the conserved vector current hypothesis for strangeness-conserving processes leads to definite statements concerning the fields describing the electron and muon neutrinos, the (ΔQ/ΔS) properties of the strangeness-changing current and the existence of neutrino flip. The more striking experimental predictions of the theory (e.g., neutrino flip accompanied by hyperon production) are discussed in some detail. Alternative formulations of the theory are examined and it is shown that very little flexibility is allowed within the framework of a dynamical baryon-lepton symmetry principle.