Spectroscopy of high-spin states in 217Ra
作者： N. Roy , D.J. Decman , H. Kluge , K.H. Maier , A. Maj
DOI: 10.1016/0375-9474(84)90113-1
关键词: Level structure 、 Physics 、 Spin states 、 Electron spectroscopy 、 Parity (physics) 、 Neutron 、 Atomic physics 、 Spectroscopy
摘要: Abstract The high-spin level structure of 217Ra has been established up to a spin ( 47 2 ) by means in-beam γ-ray and conversion electron spectroscopy with (12,13C, xn) reactions on 208Pb. Positive parity levels case27 + negative-parity states case31 − can be qualitatively understood in terms neutron excitations arising out the shell-model configurations v g 3 9 , i 11 j 15 . isomeric 33 state at 2.4 Me V above it require both proton excitations. El transitions between suggest presence octupole-deformed configurations. Our calculations provide only qualitative description levels. experimental spacings their moderate agreement calculated ones also onset deformation collective vibrational characteristics.
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