Systematic calculation of {alpha} decay within a generalized density-dependent cluster model

Journal Article · Mon Feb 15 04:00:00 EST 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.81.024315· OSTI ID:21386596

Dongdong, Ni ^[1]; Zhongzhou, Ren ^[1]

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1. Department of Physics, Nanjing University, Nanjing 210093 (China)

We perform an extensive investigation on {alpha} decays in both even-A and odd-A nuclei within the new version of the generalized density-dependent cluster model. The microscopic deformed potential is numerically constructed in the double-folding model by the multipole expansion method. The coupled-channel effect resulting from nuclear deformation is included by using the coupled-channel Schroedinger equation with outgoing wave boundary conditions. The fine structure observed in {alpha} decay is well described by taking into account the angular momentum of the emitted {alpha} particle and the Boltzmann distribution of excitation spectrum in daughter nuclei. A good agreement between experiment and theory is achieved, and the results of our calculations are discussed in detail, together with the sensitivity of the calculated half-lives and branching ratios to some physical quantities used in the calculations.

• OSTI ID: 21386596
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 2 Vol. 81; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA DECAY
ALPHA PARTICLES
ANGULAR MOMENTUM
BOUNDARY CONDITIONS
BRANCHING RATIO
CHARGED PARTICLES
CLUSTER MODEL
COUPLED CHANNEL THEORY
DECAY
DEFORMATION
DENSITY
DIFFERENTIAL EQUATIONS
DIMENSIONLESS NUMBERS
DISTRIBUTION
ENERGY-LEVEL TRANSITIONS
EQUATIONS
EXCITATION
EXPANSION
FINE STRUCTURE
FOLDING MODEL
HALF-LIFE
IONIZING RADIATIONS
MATHEMATICAL MODELS
NUCLEAR DECAY
NUCLEAR DEFORMATION
NUCLEAR MODELS
NUCLEI
PARTIAL DIFFERENTIAL EQUATIONS
PHYSICAL PROPERTIES
RADIATIONS
SCHROEDINGER EQUATION
SENSITIVITY
SPECTRA
WAVE EQUATIONS