Energy Levels in Sulfur Nuclei

A study has been made of the proton groups from the reaction of 3.22-Mev deuterons with sulfur in the form, primarily, of H₂S gas. The following Q values have been assigned to the reaction S³²(dp)S³³:6.48, 5.69, 4.58, 4.31, 3.63, 3.33, 2.60, 2.33, 2.06, 1.78, 1.37, 0.85, and 0.18 Mev, corresponding to the ground state and twelve excited states of S³³. Four of these groups have been investigated for proton gamma-ray coincidences to confirm this assignment. The yield as a function of deuteron energy has been observed for the six highest energy groups and indication of the presence of some broad resonances found. A qualitative measurement of the variation with angle of relative yields of the groups has indicated a proton intensity distribution that is symmetric for some groups and asymmetric for others. The cross section for the reaction for 90^∘{} observation has been found to be 1.2 barns. The mass difference S³³-S³² has been calculated to be 0.99963 mass unit.Two low intensity, high energy groups have been assigned to the reaction S³³(dp)S³⁴ with Q values of 8.67 and 7.85 Mev. This, together with the above observation, leads to a value of 1.99691 for the mass difference S³⁴-S³².