The representation of Fermi particles by two-component Pauli spinors satisfying a second
order differential equation and the suggestion that in β decay these spinors act without …

On the basis of the hypothesis that the same form of interaction acts among any spin-½
particles, it is interesting to apply the interaction law found for β decay to the muon …

I neutrino. This conclusion has not been changed in the light of recent work on the
nonconservation of parity in weak interactions.'However, experiments by Lokanathan and …

The general direct coupling between four fermions is studied. It is a linear combination of the
five invariants used in β-decay theory. Altering the order of the particles in the Hamiltonian …

LETTERS To EDITOR the decay of the pion except for the apparent absence of the electron
mode,'and all existing results on strange particle decays (except for the decay of the hyperon …

Ever since it was first proposed the neutrino has played a crucial role in the advancement of
our understanding of particle physics. The neutrino was first conjectured by W. Pauli in a …

The parity-non-conserving, VA form of Fermi interaction is derived from a principle of
invariance under a continuous group of transformations, in analogy with the ordinary gauge …

The explicit form for the spin projection operators introduced by Fronsdal is calculated for
arbitrary spin and applied to first-order processes involving four fermions. The matrix …

An attempt is made to construct a theory of all weak processes from a single invariance
principle. The requirement that the weak interaction Hamiltonian be invariant under the …

KK and Yang'recently proposed that parity may~ & not be conserved in weak interactions
and sug-gested various experiments to verify their hypothesis. Two of the experiments have …