Calculations in the 50

Journal Article · Thu Jan 01 04:00:00 EST 1976 · Phys. Rev., C, v. 13, no. 1, pp. 399-411

OSTI ID:4065078

de Takacsy, N; Das Gupta, S

The region of the periodic table with 50< or =Z, N< or =82 is studied using fixed single particle energies and a semirealistic effective interaction derived from the Tabakin potential. All the free parameters are determined by fitting the data on the odd-mass Sn isotopes and N=82 isotones. A conventional quasiparticle formalism is then used to study the structure of a range of spherical nuclei near the N=82 and the Z=50 magic numbers. A deformed Hartree- Fock plus BCS method is used to obtain the structure and electromagnetic properties of deformed nuclei, particularly the neutron-deficient even Ba isotopes. Prolate deformation is found to be favored. In the Ba isotopes, although neutrons have BCS correlation, the protons develop an energy gap between occupied and unoccupied orbitals due to the Hartree-Fock field itself. The proton orbitals are then tested through spectroscopic calculations in La isotopes. For both spherical and deformed nuclei, agreement between theory and experiment is very satisfactory. (AIP)

• Research Organization: Physics Department, McGill University, P. O. Box 6070, Station ''A'', Montreal, Quebec, Canada H3C 3G1
• NSA Number: NSA-33-027682
• OSTI ID: 4065078
• Journal Information: Phys. Rev., C, v. 13, no. 1, pp. 399-411, Journal Name: Phys. Rev., C, v. 13, no. 1, pp. 399-411; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

*BARIUM ISOTOPES-- NUCLEAR PROPERTIES
*INTERMEDIATE MASS NUCLEI-- ENERGY LEVELS
*LANTHANUM ISOTOPES-- ENERGY LEVELS
*TIN ISOTOPES-- ENERGY LEVELS
642703*
BCS THEORY
HARTREE-FOCK METHOD
N68732* --Physics (Nuclear
Theoretical)--Nuclear Properties &amp; Reactions
90 &lt;= A &lt;= 149--Energy Levels &amp; Transitions
PARITY
QUASI PARTICLES
SPIN
TABAKIN POTENTIAL