Intrinsic structures and associated rotational bands in deformed even-even nuclei of the actinide region

Journal Article · Wed Jul 01 00:00:00 EDT 1992 · Atomic Data and Nuclear Data Tables; (United States)

DOI:https://doi.org/10.1016/0092-640X(92)90003-Z· OSTI ID:7157222

Sood, P C ^[1]; Headly, D M; Sheline, R K ^[2]

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1. Banaras Hindu Univ., Varanasi (India) Florida State Univ., Tallahassee (United States)
2. Florida State Univ., Tallahassee (United States)

Experimentally observed energy levels of deformed even-even nuclei with Z {ge} 88 and N {ge} 134 are classified in terms of their intrinsic structures and associated rotational bands. Interleaving of the ground-state K{sup pi} = 0{sup +} band and the first excited K{sup pi} = 0{sup {minus}} band levels in the beginning of the region is presented as possible evidence for spin evolution of reflection-asymmetric (stable octupole) shapes. Rotational alignment and possible backbending in the ground-state band levels is discussed. Structures connected with one-phonon quadrupole ({beta} and {gamma}) and octupole and two-phonon vibrations are described. Other modes of excitation for 0{sup +} structures, for example, pairing vibrations and {alpha} clustering, are pointed out. Available information on the occurrence of collective dipole excitations connected with the scissors or twisting mode is also included. Bands connected with two-quasiparticle excitations are listed. Evidence for superdeformations and hyperdeformations connected with fission isomers, and related spectroscopies in the second and third well, is presented.

• OSTI ID: 7157222
• Journal Information: Atomic Data and Nuclear Data Tables; (United States), Vol. 51:2; ISSN 0092-640X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACTINIDE ISOTOPES
ENERGY LEVELS
DEFORMED NUCLEI
EVEN-EVEN NUCLEI
COMPILED DATA
ELEMENT 104 256
EXCITATION
EXCITED STATES
FISSION ISOMERS
GROUND STATES
NUCLEAR ALIGNMENT
NUCLEAR STRUCTURE
RADON 222
ALPHA DECAY RADIOISOTOPES
DATA
DAYS LIVING RADIOISOTOPES
ELEMENT 104 ISOTOPES
ENERGY-LEVEL TRANSITIONS
HEAVY NUCLEI
INFORMATION
ISOTOPES
MILLISEC LIVING RADIOISOTOPES
NUCLEI
NUMERICAL DATA
RADIOISOTOPES
RADON ISOTOPES
SPONTANEOUS FISSION RADIOISOTOPES
663110* - General & Average Properties of Nuclei & Nuclear Energy Levels- (1992-)
663580 - Nuclear Mass Ranges- A=190-219- (1992-)
663590 - Nuclear Mass Ranges- A=220 & Above- (1992-)