Lowest lying 2{sup +} and 3{sup -} vibrational states in Pb, Sn, and Ni isotopes in relativistic quasiparticle random-phase approximation

Journal Article · Wed Nov 15 04:00:00 EST 2006 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.74.054313· OSTI ID:20864029

Ansari, A; Ring, P ^[1]

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1. Institute of Physics, Sainik School Post Office, Bhubaneswar 751 005 (India)

The excitation energies and electric multipole decay rates of the lowest lying 2{sup +} and 3{sup -} vibrational states in Pb, Sn, and Ni nuclei are calculated following relativistic quasiparticle random-phase approximation formalism based on the relativistic Hartree-Bogoliubov mean field. Two sets of Lagrangian parameters, NL1 and NL3, are used to investigate the effect of the nuclear force. Overall there is good agreement with the available experimental data for a wide range of mass numbers considered here, and the NL3 set seems to be a better choice. However, strictly speaking, these studies point toward the need of a new set of force parameters that could produce more realistic single-particle levels, at least in vicinity of the Fermi surface, of a wide range of nuclear masses.

• OSTI ID: 20864029
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 5 Vol. 74; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
EXCITATION
FERMI LEVEL
LAGRANGIAN FUNCTION
LEAD ISOTOPES
MEAN-FIELD THEORY
NICKEL ISOTOPES
NUCLEAR DECAY
NUCLEAR FORCES
RANDOM PHASE APPROXIMATION
RELATIVISTIC RANGE
TIN ISOTOPES
VIBRATIONAL STATES