Self-consistent description of heavy nuclei. II. Spectroscopic properties of some odd nuclei

Journal Article · Fri Jan 01 00:00:00 EST 1982 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.25.586· OSTI ID:5754471

Libert, J; Meyer, M; Quentin, P

Spectroscopic properties of 23 odd nuclei within and around the actinide region have been calculated according to a rotor plus quasiparticle approximation where the quasiparticle states have been extracted from self-consistent calculations discussed in a previous paper. The phenomenological parameters are only six force parameters fitted once for all to nuclear saturation properties, neutron and proton pairing gaps uniquely given by odd-even mass differences, and experimental ground band energies of neighboring nuclei. Excluding thus any elusive ad hoc parameter adjustment, this approach has successfully reproduced most of the experimentally confirmed rotational bands for both odd-neutron (thorium, uranium, and plutonium) and odd-proton (actinium, protactinium, neptunium, and americium) isotopes, assessing thus the validity of the whole approach and in particular the relevance of the self-consistent deformed mean fields yielded by the Skyrme SIII effective force. Many bands previously assigned to be of a particle-vibration nature have not been found in our calculations. Their nonrotational character is thus confirmed. Reduced transition probabilities and static moments for E2 and M1 electromagnetic modes have been evaluated. Calculated magnetic and electric quadrupole moments have been shown to reproduce very well available data. Absolute intraband and interband E2 and M1 reduced transition probabilities have also been found in very good agreement with experimental results.

• Research Organization: Centre de Spectroscopie Nucleaire et de Spectrometrie de Masse, Batiment 104, Campus Orsay, 91406 Orsay, France
• OSTI ID: 5754471
• Journal Information: Phys. Rev. C; (United States), Vol. 25:1
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACTINIDE NUCLEI
NUCLEAR STRUCTURE
DEFORMED NUCLEI
E2-TRANSITIONS
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HAMILTONIANS
M1-TRANSITIONS
MATRIX ELEMENTS
PROBABILITY
QUASI PARTICLES
ROTATIONAL STATES
SKYRME POTENTIAL
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITED STATES
HEAVY NUCLEI
MATHEMATICAL OPERATORS
MULTIPOLE TRANSITIONS
NUCLEI
NUCLEON-NUCLEON POTENTIAL
POTENTIALS
QUANTUM OPERATORS
652013* - Nuclear Properties & Reactions
A=220 & above
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