Department of Physics and Institute for Nuclear Studies, University of Chicago, Chicago,
Illinois (Received August 21, 1953)'gEASLEE'has considered the interesting possibility that …

Assuming the charge independence. for V:-particles, the qualitative features of these
unstable heavy pal'ticles are investigated. In view of the present experimental mater: al …

If electromagnetic interactions are wholly responsible for all departures from isotopic spin
invariance, then the strict conservation law Δ T= 0 may be replaced, to order e 2, by the rule …

The properties of particles of arbitrary spin and parity that decay into three pseudoscalar
mesons are surveyed, with primary attention to 3 π decays, in order to find efficient means of …

The hypothesis of charge independence for nuclear phenomena is a symmetry condition
which leads to nontrivial relationships to be satisfied by an extensive class of meson …

Based on the charge independence hypothesis the properties of V particles are theoretically
investigated. It is found that the curious behaviours of these unstable particles are most …

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 …

The large yield and striking stability of V-particles are tentatively interpreted in terms of the
so-called even-odd rulel), but since this rule is phenomenological in'natures several …

—0, P, fixed. In thislimit one can discard with confidence the first term."% e thereupon
conclude that the summation being over those n for which &u „(P)—0. Thus C, could be zero …

The purpose of this communication is to present a coherent summary of the author's
theoreticaI proposals [1] concerning the new unstable particles. i Section 2 is devoted to …