Level spectrum of /sup 219/Ra and weak coupling in the light actinide region

Journal Article · Tue Dec 01 04:00:00 EST 1987 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.36.2286· OSTI ID:5772999

Cottle, P D; Gai, M; Ennis, J F; Shriner, Jr, J F; Bromley, D A; Beausang, C W; Hildingsson, L; Piel, Jr, W F; Fossan, D B; Olness, J W

We present a level spectrum for /sup 219/Ra derived from data on the reaction /sup 208/Pb(/sup 14/C,3n) studied at beam energies near the Coulomb barrier. Measurements of ..gamma..-ray excitation functions, ..gamma..-..gamma.. coincidences, ..gamma..-ray angular distributions, and electron conversion coefficients were made. The ground state band shows an alternating parity structure and is consistent with an interpretation in terms of a g/sub 9/2/ neutron weakly coupled to an even-even core. A nonyrast side band is observed and may arise from the anomalous coupling of a j/sub 15/2/ neutron to the core. The dependence of particle-core coupling behavior on the quadrupole deformation of the core and on the orbital in which the odd nucleon is located is discussed.

• Research Organization: A.W. Wright Nuclear Structure Laboratory, Yale University, New Haven, Connecticut 06511
• OSTI ID: 5772999
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 36:6; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651920* -- Nuclear Properties & Reactions
A=190-219
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALINE EARTH ISOTOPES
ALPHA DECAY RADIOISOTOPES
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
BARYONS
CARBON 14 REACTIONS
CHARGED-PARTICLE REACTIONS
COMPOUND-NUCLEUS REACTIONS
CROSS SECTIONS
DATA
DISTRIBUTION
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY RANGE
EVEN-ODD NUCLEI
EXCITATION FUNCTIONS
EXPERIMENTAL DATA
FERMIONS
FUNCTIONS
HADRONS
HEAVY ION REACTIONS
HEAVY NUCLEI
INFORMATION
ISOTOPES
LEAD 208 TARGET
MEV RANGE
MEV RANGE 10-100
NEUTRONS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
NUMERICAL DATA
PARITY
PARTICLE PROPERTIES
RADIOISOTOPES
RADIUM 219
RADIUM ISOTOPES
SECONDS LIVING RADIOISOTOPES
SPIN
TARGETS