Systematic study of the structure of odd-mass lanthanum nuclei. II. Levels in $sup 135$La from $sup 135$Ce decay

Journal Article · Wed Oct 01 04:00:00 EDT 1975 · Phys. Rev., C, v. 12, no. 4, pp. 1321-1335

OSTI ID:4145317

Henry, E A; Meyer, R A

The $beta$ decay of 17.6-h $sup 135$Ce to levels in $sup 135$La was studied b $gamma$-ray and conversion-electron spectroscopy, and by extensive $gamma$--$gamma$-coincidence experiments. The use of mass-separated sources, a Compton-suppressed spectrometer, and the megachannel analyzer system for coincidence studies has enabled substantial extension of the experimental knowledge of $sup 135$La. Seventy-three previously unreported transitions were observed in the singles and coincidence data. Six levels not proposed in earlier works are firmly established here, and two other levels are tentatively proposed. The level structure of $sup 135$La is compared to the systematics of related nuclei and to qualitative interpretations of nuclear models that attempt to describe this nucleus.

• Research Organization: Lawrence Livermore Laboratory, Livermore, California 94550
• NSA Number: NSA-33-004414
• OSTI ID: 4145317
• Journal Information: Phys. Rev., C, v. 12, no. 4, pp. 1321-1335, Journal Name: Phys. Rev., C, v. 12, no. 4, pp. 1321-1335; ISSN PRVCA
• Country of Publication: United States
• Language: English

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