Alpha-gamma decay studies of $$^{247}$$Md

Abstract

AbstractAlpha decay and spontaneous fission of the ground-state and the isomeric state of $$^{247}$$ 247 Md were investigated with specific emphasis to identify the ground-state of the daughter nucleus $$^{243}$$ 243 Es. The decay studies were accompanied by measuring $$\alpha $$ α -$$\gamma $$ γ coincidences. On the basis of the measured data an improved decay scheme of $$^{247}$$ 247 Md is proposed. Spontaneous fission half-lives of $$^{247g}$$ 247 g Md and $$^{247m}$$ 247 m Md were determined and the fission hindrance of the high spin ground-state (7/2$$^{-}$$ - ) relative to the low spin isomeric state (1/2$$^{-}$$ - ) was estimated.