Assuming the symmetric coupling scheme proposed by Wheeler and Tiomno, and others,
we have calculated the ratio of the decay rate π− meson→ electron+ neutrino to the decay …

An attempt is made to forbid the unwanted processes involving leptons by assuming the
conservation law of lepton number and that of neutrino charge. To do this, suitable …

The characteristics of the decay process τ±→ π±+ π++ π−+ γ are considered. For a
pseudoscalar τ-meson, the probability R (k), relative to the 3 π-decay, for emission of a …

A search has been carried out for the production of neutrinos in the mass range 60 to 130
MeV coupling to the electron in the decay π+→ e+ ν. The dominant background from the π …

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 …

Empirical evidence on the shapes of first-and second-forbidden spectra is surveyed to
determine the linear combination of invariants in the β-decay interaction. Absence of 1 W …

Upper limit on the branching ratio for the decay p^{0}nn Page 1 VOLUME 66, NUMBER 17
PHYSICAL REVIEW LETTERS 29 APRIL 1991 Upper Limit on the Branching Ratio for the …

The applicability of the hypothesis of charge independence is discussed for the τ-meson.
One consequence of this hypothesis is that the frequency of charged τ-meson decay leading …

A special form of the theory of Lee and Yang (1) is obtained by imposing an invariance
principle, which insures that the mass as well as the magnetic moment (2) of the neutrino is …

The present limit on the mass of the tau neutrino (m ν τ< 143 MeV), obtained from tau decay,
may be lowered significantly from a study of the pion spectrum in K+→ π+ ν ν―. We show …