alpha-decay half-lives of superheavy elements with the Dirac-Brueckner-Hartree-Fock (DBHF) nucleon effective interaction

Journal Article · Thu Apr 15 00:00:00 EDT 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.81.044319· OSTI ID:21388928

Dida, Zhang ^[1]; Zhongyu, Ma; Baoqiu, Chen ^[1]; Shuifa, Shen ^[2]

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1. China Institute of Atomic Energy, Post Office Box 275, Beijing 102413 (China)
2. School of Nuclear Engineering and Technology, East China Institute of Technology, Fuzhou, Jiangxi 344000 (China)

The nucleon effective interaction is calculated in the framework of the Dirac-Brueckner-Hartree-Fock approach, which has been illustrated to reproduce well the ground-state properties and the experimental data of proton and alpha particle scattering off nuclei. The nuclear potential of the alpha-nucleus is obtained by doubly folding the nucleon effective interaction with respect to the density distributions of both the alpha particle and daughter nucleus. We apply this new nuclear potential of the alpha-nucleus to investigate the alpha-decay half-lives of superheavy elements in the preformed cluster model along with the experimental decay energies Q{sub exp}. Good agreement with the experimental data is achieved. We also systematically calculate the alpha-decay half-lives for 19 isotope chains (Z=102-120) in this framework using the theoretical alpha-decay energies Q{sub th} extracted from the Moeller-Nix-Kratz mass table. The predicted results are compared with those obtained by using the same Q{sub th} but the nuclear potentials evaluated with M3Y effective interaction and also with the results calculated in the empirical formulas of the Viola-Seaberg-Sobiczewski formula.

• OSTI ID: 21388928
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 81, Issue 4; Other Information: DOI: 10.1103/PhysRevC.81.044319; (c) 2010 The American Physical Society; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA DECAY
ALPHA PARTICLES
CHAINS
CLUSTER MODEL
DENSITY
DISTRIBUTION
GROUND STATES
HALF-LIFE
HARTREE-FOCK METHOD
INTERACTIONS
MASS
NUCLEAR POTENTIAL
PROTONS
SCATTERING
TRANSACTINIDE ELEMENTS
APPROXIMATIONS
BARYONS
CALCULATION METHODS
CHARGED PARTICLES
DECAY
ELEMENTARY PARTICLES
ELEMENTS
ENERGY LEVELS
FERMIONS
HADRONS
IONIZING RADIATIONS
MATHEMATICAL MODELS
NUCLEAR DECAY
NUCLEAR MODELS
NUCLEONS
PHYSICAL PROPERTIES
POTENTIALS
RADIATIONS
TRANSPLUTONIUM ELEMENTS
TRANSURANIUM ELEMENTS