Mass ofS31

A high-resolution study of the ${}_{}{}^{32}{}_{}{}^{}\mathrm{S}\mathrm{}(p,d)\mathrm{}{}_{}{}^{31}{}_{}{}^{}\mathrm{S}$ reaction shows a discrepancy with the current table of mass values. The ${}_{}{}^{32}{}_{}{}^{}\mathrm{S}\mathrm{}(p,d)\mathrm{}{}_{}{}^{31}{}_{}{}^{}\mathrm{S}$ reaction $Q$ value is found to be - 12 817.8 ± 1.5 keV, 45.6 keV more positive than the published value, which carried an 11-keV uncertainty. Similar studies of the ($p,d$) reaction on ${}_{}{}^{23}{}_{}{}^{}\mathrm{Na}$, ${}_{}{}^{27}{}_{}{}^{}\mathrm{Al}$, ${}_{}{}^{33}{}_{}{}^{}\mathrm{S}$, ${}_{}{}^{34}{}_{}{}^{}\mathrm{S}$, ${}_{}{}^{35}{}_{}{}^{}\mathrm{Cl}$, and ${}_{}{}^{37}{}_{}{}^{}\mathrm{Cl}$ indicate no discrepancies with the $Q$ values (of 1- to 2-keV accuracy) tabulated for these nuclei. Possible sources for the sulfur discrepancy are discussed.