Collective vibrations in 218Ra
作者： Y. Gono , T. Kohno , M. Sugawara , Y. Ishikawa , M. Fukuda
DOI: 10.1016/0375-9474(86)90143-0
关键词: Excited state 、 Vibration 、 Physics 、 Atomic physics 、 Yrast 、 Quadrupole 、 Nuclear reaction 、 Parity (physics)
摘要: Abstract Excited states in 218 Ra were studied through the 208 Pb( 13 C, 3n) reaction. Five sets of BGOACS's used for γγ-coincidence measurements. Levels established up to 21 − state. A negative parity band which crosses yrast sequence at spin was found first time this mass region. The B(E1) B( E 2) ratios deexcitations 7 17 are discussed based on vibrational model by taking into account quadrupole, octupole and hexadecapole degrees freedom.
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