The band structure of 82Sr
AbstractAbstract
[en] Investigations of the nucleus 82Sr are considered particularly interesting, where very different configurations changing with spin and excitation energy may be observed. The present report describes the high spin band structure of 82Sr deduced from an in-beam study. The experiments presented were carried out at the Niels Bohr Institute tandem accelerator laboratory. High-spin states in 82Sr are populated using the 58Ni(28Si,4p)82Sr reaction at a beam energy of 128 MeV. A stacked target of two self-supporting 58Ni foils with a thickness of 0.34 mg/cm2 is used. Gamma rays are detected in the NORDBALL array of 20 Compton suppressed germanium detector. Neutrons are also measured. Analysis is made of the gamma ray spectrum obtained by summing up spectra in coincidence with gamma rays in the negative parity band, in the odd spin band, in the ground band, or in the yrast band. An energy level scheme of 82Sr is proposed and discussed. The kinematical moment of inertia is calculated and discussed as a function of rotational frequency for the rotational bands in 82Sr. The quantum number K=0 is used in calculating the moment of inertia of the side bands. (N.K.)
Primary Subject
Source
INS workshop on nuclear structure at high spin and high excitation; Tanashi, Tokyo (Japan); 1-3 Nov 1990
Record Type
Journal Article
Literature Type
Conference
Journal
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Descriptors (DEI)
Descriptors (DEC)
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