Energy Levels ofS33,S35,Cl36,Cl38, andBa139

Abstract

Barium-chloride targets have been bombarded with deuterons accelerated by an electrostatic generator to energies between 3.0 and 7.5 Mev. Charged reaction products have been observed with a high-resolution magnetic analyzer. The following ground-state $Q$-values have been measured: ${\mathrm{Cl}}^{35}(d, \alpha ){\mathrm{S}}^{33}$, 8.277±0.010 Mev; ${\mathrm{Cl}}^{37}(d, \alpha ){\mathrm{S}}^{35}$, 7.783±0.012 Mev; ${\mathrm{Cl}}^{35}(d, p){\mathrm{Cl}}^{36}$, 6.354±0.008 Mev; and ${\mathrm{Cl}}^{37}(d, p){\mathrm{Cl}}^{38}$, 3.881±0.008 Mev. Fifteen levels have been observed in ${\mathrm{S}}^{33}$, four in ${\mathrm{S}}^{35}$, twenty-three in ${\mathrm{Cl}}^{36}$, and six in ${\mathrm{Cl}}^{38}$. From the intensities of the observed proton groups and other considerations, a spin of $J=2^{-}$ can be assigned to the ${\mathrm{Cl}}^{38}$ ground state, and a spin of $J=5^{-}$ to the lowest (isomeric) level in ${\mathrm{Cl}}^{38}$ at 672±5 kev.