gamma. decay of the superdeformed shape isomer in sup 236 U

Journal Article · Mon Nov 13 04:00:00 EST 1989 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.63.2196· OSTI ID:5176507

Schirmer, J; Gerl, J; Habs, D; Schwalm, D ^[1]

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1. Physikalisches Institut der Universitaet Heidelberg, Heidelberg, (Federal Republic of Germany) Max-Planck-Institut fuer Kernphysik, D-6900 Heidelberg, Federal Republic of Germany (DE)

Using the Heidelberg-Darmstadt Crystal Ball spectrometer the {gamma} decay of the superdeformed shape isomer in {sup 236}U has been investigated employing the {sup 235}U({ital d},{ital p}) reaction at 11 MeV. The isomer was isolated by requiring that the prompt and delayed {gamma} sum energy add up to the initial excitation energy of {sup 236}U as determined from the energy of the recoiling proton. The shape isomer was found to have an excitation energy of {ital E}(0{sub II}{sup +})=2.75{plus minus}0.01 MeV and to decay by four different {gamma} transitions in competition with its well known fission mode. The corresponding branching ratio of {gamma} decay to fission was determined to be {Gamma}{sub {ital F}{gamma}}/{Gamma}{sub Ff}=8{plus minus}3, thus resolving the long-standing problem of the missing {gamma} decay branch.

• OSTI ID: 5176507
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 63:20; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

653005* -- Nuclear Theory-- Radioactive Decay
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
BRANCHING RATIO
CHARGED PARTICLE DETECTION
CHARGED-PARTICLE REACTIONS
DATA
DECAY
DEFORMED NUCLEI
DETECTION
DEUTERON REACTIONS
DIRECT REACTIONS
E1-TRANSITIONS
ENERGY LEVELS
ENERGY RANGE
ENERGY SPECTRA
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
GAMMA DECAY
GROUND STATES
HEAVY NUCLEI
INFORMATION
ISOMERS
ISOTOPES
MEV RANGE
MEV RANGE 01-10
MULTIPOLE TRANSITIONS
NUCLEAR DECAY
NUCLEAR REACTIONS
NUCLEI
NUMERICAL DATA
ONE-NUCLEON TRANSFER REACTIONS
PROTON DETECTION
RADIATION DETECTION
RADIOISOTOPES
SPECTRA
TARGETS
TRANSFER REACTIONS
URANIUM 235 TARGET
URANIUM 236
URANIUM ISOTOPES
YEARS LIVING RADIOISOTOPES