It may be seen that there will be time-dependent oscillations for the decay of such a state
even into modes of a given isospin, which can be reached only from one of Ip) or I~) …

'HE decay of the chargedm-meson throughvirtual nucleon pairs and the annihilation of a pair
with the creation of a neutrino and an electron or p-meson is permitted by the accepted …

There is now evidence'that the p resonance can be resolved into two peaks, and that the
high-er of these, p „may be very close to the~ reso-nance indeedand have as small a half …

The experiment described in the previous I etter'also yields information on thedecay
products of the cv and q mesons.% e present here studies on correlations among the decay …

their decays into m++ m+ m. Apparently they are produced onlyin the T= O channel. The &
meson has been assigned spinand parity 1 on the basis of good agreement with a Dalitz …

FIG. l. In addition to the three meson nonets, with J= 0, 1, and 2+, which are discussed in the
text, 16 possible candidates for J+= 1 assignments are shown. These are A~(1090), B …

Precise Relations between the Spectra of Vector and Axial-Vector Mesons Page 1 VOLUME
18,+UMBER 13 PHYSICAL REVIEW LETTERS 27 MARCH 1967 PRECISE RELATIONS …

The 2w decay of+ has been recently measured by Walker et al.,'who give r (2w)/r (3m)= 1. 8+
0" s"%. Combining this result with I'(3w)= 8. 5 MeV, s one has I'(2w)= 150+ Msss keV. We …

Since the various species of E mesons produced at the Bevatron are found to have masses
equal within the rather small experimental error," it becomes a critical matter to see if the …

Consideration is given to the possibility that the θ 0 particle can decay via the" anomalous"
modes (e π ν) and (μ π ν). It is shown that, as a function of time, the decay rate for θ 0 …