High-spin Level Structure Ofhg200

The level structure of $^{200}\mathrm{Hg}$ has been intensively studied by the reaction $^{198}\mathrm{Pt}(\ensuremath{\alpha},2n\ensuremath{\gamma})$, and many new levels have been identified. The results clarify some important aspects of the $^{200}\mathrm{Hg}$ high-spin level structure.NUCLEAR REACTIONS $^{198}\mathrm{Pt}(\ensuremath{\alpha},2n)$, $E=26\ensuremath{-}28$ MeV; measured ${E}_{\ensuremath{\gamma}}$, ${I}_{\ensuremath{\gamma}}(\ensuremath{\theta})$, $\ensuremath{\gamma}\ensuremath{-}\ensuremath{\gamma}$ coin; $^{200}\mathrm{Hg}$ deduced high-spin levels, $J$, $\ensuremath{\pi}$.