Octupole deformation in neutron-rich barium isotopes

Journal Article · Mon Dec 29 04:00:00 EST 1986 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.57.3257· OSTI ID:6749885

Phillips, W R; Ahmad, I; Emling, H; Holzmann, R; Janssens, R V.F.; Khoo, T h; Drigert, M W

Partial decay schemes for the very neutron-rich nuclei /sup 142,144/Ba and /sup 146/Ba have been determined by the study of ..gamma..-..gamma.. coincidences in /sup 252/Cf fission fragments. Interlaced positive- and negative-parity levels connected by fast electric dipole transitions are observed in /sup 144/Ba and /sup 146/Ba above spin 7h-dash-bar. This is similar to the situation in some light actinide nuclei, where the data have been interpreted in terms of reflection-asymmetric shapes.

• Research Organization: Argonne National Laboratory, Argonne, Illinois 60439
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6749885
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 57:26; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

651720* -- Nuclear Properties & Reactions
A=90-149
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALKALINE EARTH ISOTOPES
ALPHA DECAY RADIOISOTOPES
BARIUM 142
BARIUM 144
BARIUM 146
BARIUM ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CALIFORNIUM 252
CALIFORNIUM ISOTOPES
DECAY
DEFORMED NUCLEI
E1-TRANSITIONS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
FISSION
FISSION FRAGMENTS
GAMMA SPECTRA
HEAVY NUCLEI
INTERMEDIATE MASS NUCLEI
ISOTOPES
MINUTES LIVING RADIOISOTOPES
MULTIPOLE TRANSITIONS
NUCLEAR FRAGMENTS
NUCLEAR REACTIONS
NUCLEI
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SPECTRA
SPONTANEOUS FISSION
YEARS LIVING RADIOISOTOPES