Pair-truncated shell-model analysis of nuclei around mass 130

Journal Article · Tue Mar 15 04:00:00 EDT 2011 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.83.034321· OSTI ID:21499490

Higashiyama, Koji ^[1]; Yoshinaga, Naotaka ^[2]

---

1. Department of Physics, Chiba Institute of Technology, Narashino, Chiba 275-0023 (Japan)
2. Department of Physics, Saitama University, Saitama City 338-8570 (Japan)

Low-lying states for even-even, odd-mass, and doubly odd nuclei in the mass A{approx}130 region are systematically investigated using a pair-truncated shell model. In this model the collective nucleon pairs with angular momenta zero and two are the basic ingredients for even-even nuclei. Additional unpaired nucleons are added to the even-even core for a description of odd-mass and doubly odd nuclei. The effective interactions consist of single-particle energies and monopole and quadrupole pairing plus quadrupole-quadrupole interactions, whose strengths are assumed to be linearly changed as functions of the number of nucleons so as to describe the level schemes of the even-even and odd-mass nuclei. Energy levels of the low-lying collective states for even-even Xe, Ba, Ce, and Nd isotopes are reproduced very well along with intraband and interband B(E2) values, which simulate the typical features of the O(6) limit of the interacting boson model. For odd-mass and doubly odd nuclei, complicated level schemes and electromagnetic moments are in excellent agreement with the experimental data.

• OSTI ID: 21499490
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 3 Vol. 83; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALINE EARTH METALS
ANGULAR MOMENTUM
BARIUM
BARYONS
CERIUM
E2-TRANSITIONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
FERMIONS
FLUIDS
GASES
HADRONS
INTERACTING BOSON MODEL
INTERACTIONS
ISOTOPES
MASS
MATHEMATICAL MODELS
METALS
MONOPOLES
MULTIPOLE TRANSITIONS
NEODYMIUM
NEODYMIUM ISOTOPES
NONMETALS
NUCLEAR MODELS
NUCLEI
NUCLEONS
PARTICLES
RARE EARTHS
RARE GASES
SHELL MODELS
XENON