Results from a detailed study using the Crystal Ball detector at the SLAC e+e storage ring SPEAR of the inclusive photon spectra from 1.8 X 106 i(t' and 2.2&& 106 J/P decays are presented. Radiative transitions from the P to the 1'2~o states are observed with photon energies of 126.0+0.2+4, 169.6+0.3 +4, and 258.4+0.4+4 Mev and branching ratios 8(i('~y X2, &, p) =(8.0%0.5+0.7)%, (9.0+0.5+0.7)%, and (9.9+0.5+0.8)%, respectively. Values for the natural linew'idths of the p states are obtained: I (p2 l 0)=0.8-4.9, &3.8, and 13-21 MeV, respectively (90% C.L.). Improved values are found for the branchmg ratios 8(g'~yg,) =(0.28+0.06)% and B(J//~yes,) =(1.27+0.36)%, and for the natural width I (g,) =11.524.5 MeV.

The Crystal Ball detector at SPEAR has been used to investigate the decays '#'+YYJ/9,J/J~(ete-or b+v') resulting from production of 8x105 .#f. From this selection of the data we measure the branching ratios for the processes q'-'(7) or T~)J/$ and.$'+yx,x-+yJ/+. An analysis of the angular correlations in the latter process furnishes measurements of the x(3.55) and x(3.51) spins and of the multipole structure of the radiative transitions.

An r\ c ' candidate state is observed at a mass M~ 3592 ± 5 MeV and with a natural linewidth T< 8 MeV (95% confidence level), by using the "crystal ball" Nal(Tl) detector at the Stanford Linear Accelerator Center (SPEAR). The evidence is found in the inclusive photon spectrum in decays of the */>'(3684), where a signal is observed corresponding to a radiative transition to this state with branching ratio between 0.2% and 1.3% (95% confidence interval, including an uncertainty due to correlation with width).

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