Structure of Os and Pt isotopes

Journal Article · Mon Aug 01 04:00:00 EDT 1988 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.38.953· OSTI ID:6919376

Ansari, A

Employing a pairing-plus-quadrupole model interaction Hamiltonian, especially suited for the Os-Pt region, the ground-state structure of these nuclei for A = 186 to 192 is investigated following a self-consistent Hartree-Fock-Bogoliubov approach. Effects of the inclusion of the hexadecapole degrees of freedom in the Hamiltonian are also studied. All the isotopes of osmium considered here come out to be prolate (asymmetry parameter, ..gamma.. = 0) in shape in the ground state with flat potential-energy surfaces in the ..gamma.. direction unless the hexadecapole degrees of freedom are included. /sup 186,188/Pt are triaxial with ..gamma..approx. =12/sup 0/, and /sup 190/Pt and /sup 192/Pt may be considered as oblate with ..gamma..approx. =33/sup 0/ and 44/sup 0/, respectively. Inclusion of the hexadecapole force does not have much effect on the equilibrium values of shape parameters of Pt isotopes.

• Research Organization: International Centre for Theoretical Physics, Trieste, Italy
• OSTI ID: 6919376
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 38:2; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

653001* -- Nuclear Theory-- Nuclear Structure
Moments
Spin
& Models
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA DECAY RADIOISOTOPES
BETA DECAY RADIOISOTOPES
DAYS LIVING RADIOISOTOPES
DEFORMED NUCLEI
ELECTRON CAPTURE RADIOISOTOPES
ENERGY LEVELS
EVEN-EVEN NUCLEI
GROUND STATES
HARTREE-FOCK-BOGOLYUBOV THEORY
HEAVY NUCLEI
HOURS LIVING RADIOISOTOPES
ISOTOPES
NUCLEAR STRUCTURE
NUCLEI
OSMIUM ISOTOPES
PLATINUM 186
PLATINUM 188
PLATINUM 190
PLATINUM 192
PLATINUM ISOTOPES
RADIOISOTOPES
YEARS LIVING RADIOISOTOPES