High spin states in sup 75 Kr: Approaching superdeformation in the A =80 region

Journal Article · Fri Dec 01 04:00:00 EST 1989 · Physical Review (Section) C: Nuclear Physics; (USA)

DOI:https://doi.org/10.1103/PhysRevC.40.2672· OSTI ID:7265497

Winchell, D F; Kaplan, M S; Saladin, J X; Takai, H ^[1]; Kolata, J J ^[2]; Dudek, J ^[3]

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1. Department of Physics, University of Pittsburgh, Pittsburgh, Pennsylvania 15260 (USA)
2. Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556 (USA)
3. Centre de Recherches Nucleaires, F-67037 Strasbourg CEDEX, (France)

Excited states in {sup 75}Kr were populated via the reaction {sup 46}Ti({sup 32}S,2{ital pn}) at a beam energy of 97 MeV. Several new high-spin states were found. Evidence for band crossings was found in both the positive- and negative-parity bands. Calculations using a cranked Strutinsky-Bogolyubov model with a Woods-Saxon potential indicate noticeably different deformations for the opposite parity bands: {beta}{sub 2}=0.40, {gamma}={minus}8{degree} for the positive-parity band and {beta}{sub 2}=0.36, {gamma}=3{degree} for the negative-parity band. These deformations are comparable to superdeformations reported by other authors in the cerium region. Signature splitting in both positive- and negative-parity bands was well reproduced by the calculations. Indirect evidence suggests shape coexistence within the positive-parity band at low spin.

• OSTI ID: 7265497
• Journal Information: Physical Review (Section) C: Nuclear Physics; (USA), Journal Name: Physical Review (Section) C: Nuclear Physics; (USA) Vol. 40:6; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651620* -- Nuclear Properties & Reactions
A=59-89
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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
BAND THEORY
BARYONS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CHARGED-PARTICLE REACTIONS
COMPOUND-NUCLEUS REACTIONS
CRANKING MODEL
DEFORMATION
DISTRIBUTION
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY RANGE
EVEN-ODD NUCLEI
FERMIONS
GAMMA RADIATION
HADRONS
HEAVY ION REACTIONS
HIGH SPIN STATES
INTERMEDIATE MASS NUCLEI
IONIZING RADIATIONS
ISOTOPES
KRYPTON 75
KRYPTON ISOTOPES
MATHEMATICAL MODELS
MEV RANGE
MEV RANGE 10-100
MINUTES LIVING RADIOISOTOPES
NEUTRONS
NUCLEAR DEFORMATION
NUCLEAR MODELS
NUCLEAR POTENTIAL
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
PARITY
PARTICLE PROPERTIES
POTENTIALS
PROTONS
RADIATIONS
RADIOISOTOPES
SHELL MODELS
SPIN
SULFUR 32 REACTIONS
TARGETS
TITANIUM 46 TARGET
WOODS-SAXON POTENTIAL