Band structure in $sup 131$ $sup 132$ $sup 133$Ba observed by ($sup 12$C,xn) reactions

Journal Article · Mon Nov 10 04:00:00 EST 1975 · Nucl. Phys., A, v. 252, no. 2, pp. 509-523

OSTI ID:4092179

Gizon, J; Gizon, A; Horen, D J

High-spin levels in Ba isotopes are observed in the reactions $sup 122$ $sup 124$Sn($sup 12$C,3n$gamma$$)$$sup 131$ $sup 133$Ba and $sup 124$Sn($sup 12$C,4n$gamma$$)$$sup 132$Ba. They are studied by in-beam spectroscopic methods such as prompt and delayed spectra, excitation functions, $gamma$--$gamma$ coincidences and angular distributions. Bands are found on the $sup 11$$/$$sub 2$$sup -$ isomeric state in $sup 133$Ba and on the $sup 9$$/$$sub 2$$sup -$ isomeric state in $sup 131$Ba which are in agreement with the structure of other nuclei with 77 and 75 neutrons and with prolate deformation. A negative-parity band with both even- and odd-spin members from 5$sup -$ to 9$sup -$ is found in $sup 132$Ba. (NL)

• Research Organization: Grenoble-1 Univ., 38 (France). Inst. des Sciences Nucleaires
• NSA Number: NSA-33-019049
• OSTI ID: 4092179
• Journal Information: Nucl. Phys., A, v. 252, no. 2, pp. 509-523, Journal Name: Nucl. Phys., A, v. 252, no. 2, pp. 509-523; ISSN NUPAB
• Country of Publication: Netherlands
• Language: English

Related Subjects

*CARBON 12 REACTIONS-- COMPOUND-NUCLEUS REACTIONS
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ANGULAR DISTRIBUTION
BARIUM 131-- BARIUM 132-- BARIUM 133-- BRANCHING RATIO-- HIGH SPIN STATES-- MULTIPOLARITY-- PARITY-- SPIN
BARIUM 132-- TIN 124
EXCITATION FUNCTIONS
GAMMA RADIATION
GAMMA SPECTRA
ISOMERIC NUCLEI
MEV RANGE 10-100
N68731* --Physics (Nuclear
Experimental)--Nuclear Properties & Reactions
90 <= A <= 149--Energy Levels & Transitions
N68751 --Physics (Nuclear
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90 <= A <= 149--Nuclear Reactions & Scattering
NEUTRONS BARIUM 131-- TIN 122