Description of nuclei in the A similar to 100 mass region with the interacting boson model


BÖYÜKATA M., VAN ISACKER P., Uluer I.

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, vol.37, no.10, 2010 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 37 Issue: 10
  • Publication Date: 2010
  • Doi Number: 10.1088/0954-3899/37/10/105102
  • Journal Name: JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
  • Journal Indexes: Science Citation Index Expanded, Scopus

Abstract

Even-even nuclei in the A similar to 100 mass region are investigated within the framework of the interacting boson model-1 (IBM-1). The study includes energy spectra and electric quadrupole transition properties of zirconium, molybdenum, ruthenium and palladium isotopes with neutron number N >= 52. A global parametrization of the IBM-1 Hamiltonian is found leading to a description of about 300 collective levels in 30 nuclei with a root-mean-square deviation from the observed level energies of 120 keV. The importance of the d(5/2) subshell closure at neutron number N = 56 is pointed out. The geometric character of the nuclei can be visualized by plotting the potential energy surface V (beta, gamma) obtained from the IBM-1 Hamiltonian in the classical limit. The parametrization established on the basis of known elements is used to predict properties of the unknown, neutron-rich isotopes (106)Zr, (112)Mo, (116)Ru and (122)Pd.