2.102-MeV level inHg206and the spin gyromagnetic ratio of the3−sproton

Abstract

The nuclear gyromagnetic ratio, spin parity, and lifetime of the $^{206}\mathrm{Hg}$ 2.102-MeV level have been measured to be $g=1.09\ifmmode\pm\else\textpm\fi{}0.01$, ${J}^{\ensuremath{\pi}}={5}^{\ensuremath{-}}$, and ${\ensuremath{\tau}}_{m}=3.1\ifmmode\pm\else\textpm\fi{}0.3$ \ensuremath{\mu}sec, respectively. The level was populated via the $^{204}\mathrm{Hg}(t, p)^{206}\mathrm{Hg}$ reaction. The perturbed angular distribution technique was employed to measure $g$. Using known data, the spin gyromagnetic ratio for a proton in the $3s$ orbital has been deduced: ${g}_{s}(\ensuremath{\pi};3s)=3.6\ifmmode\pm\else\textpm\fi{}0.3$. For the 1.068-MeV level, ${J}^{\ensuremath{\pi}}={2}^{+}$.NUCLEAR REACTIONS $^{204}\mathrm{Hg}(t, p)$, ${E}_{t}=16$ MeV. For $^{206}\mathrm{Hg}$ (${E}_{x}=2.102$ MeV), measured ${\ensuremath{\tau}}_{m}=3.1\ifmmode\pm\else\textpm\fi{}0.3$ \ensuremath{\mu}sec, $g=1.09\ifmmode\pm\else\textpm\fi{}0.01$, and ${J}^{\ensuremath{\pi}}={5}^{\ensuremath{-}}$. For ${E}_{x}=1.068$ MeV, ${J}^{\ensuremath{\pi}}={2}^{+}$. Deduce $g(\ensuremath{\pi};3s)=3.6\ifmmode\pm\else\textpm\fi{}0.3$.