Negative parity states and octupole collectivity of even Ge isotopes

Journal Article · Fri Jan 01 04:00:00 EST 1993 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.47.183· OSTI ID:6898811

Chuu, D ^[1]; Hsieh, S T; Chiang, H C ^[2]

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1. Department of Electrophysics, National Chiao Tung University, Hsinchu, Taiwan (Taiwan, Province of China)
2. Department of Physics, National Tsing Hua University, Hsinchu Taiwan (Taiwan, Province of China)

The negative parity energy levels of the even-even Ge isotopes with mass number between 64 and 76 are studied systematically by enlarging the model space of the interacting boson approximation model to include both collective and noncollective basis states. The basis states consist of [ital N][sub [ital B]][minus]1 s[ital d]-boson plus a [ital f]-boson configuration and [ital N][sub [ital B]][minus]1 [ital sd] boson plus a fermion pair configuration. The fermions are allowed to occupy the [ital f][sub 5/2] and [ital g][sub 9/2] single-particle orbitals, respectively. It was found that the negative parity energy levels of [sup 64[minus]76]Ge nuclei can be described reasonably well. The intensities of the collective configuration in 3[sup [minus]] states increase when going from nucleus [sup 64]Ge to nucleus [sup 72]Ge and decrease from nucleus [sup 72]Ge to nucleus [sup 74]Ge. The [ital B]([ital E]3;3[sub 1][sup [minus]][r arrow]0[sub 1][sup +]) values are calculated and compared with the available observed data.

• OSTI ID: 6898811
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 47:1; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663120* -- Nuclear Structure Models & Methods-- (1992-)
663550 -- Nuclear Mass Ranges-- A=59-89-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
DAYS LIVING RADIOISOTOPES
E3-TRANSITIONS
ELECTRON CAPTURE RADIOISOTOPES
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EXCITED STATES
GERMANIUM 64
GERMANIUM 66
GERMANIUM 68
GERMANIUM 70
GERMANIUM 72
GERMANIUM 74
GERMANIUM 76
GERMANIUM ISOTOPES
HOURS LIVING RADIOISOTOPES
INTERACTING BOSON MODEL
INTERMEDIATE MASS NUCLEI
ISOTOPES
MATHEMATICAL MODELS
MINUTES LIVING RADIOISOTOPES
MULTIPOLE TRANSITIONS
MULTIPOLES
NUCLEAR MODELS
NUCLEI
OCTUPOLES
PARITY
PARTICLE PROPERTIES
RADIOISOTOPES
SHELL MODELS
STABLE ISOTOPES