Absolute alpha decay width of sup 212 Po in a combined shell and cluster model

Journal Article · Mon Jul 06 04:00:00 EDT 1992 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.69.37· OSTI ID:7105950

Varga, K; Lovas, R G ^[1]; Liotta, R J ^[2]

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1. Institute of Nuclear Research of the Hungarian Academy of Sciences (ATOMKI), Debrecen H-4001 (Hungary)
2. Manne Siegbahn Institute of Physics (MSI), S-104 05 Stockholm (Sweden)

We give a parameter-free microscopic description of the {alpha} decay of the ground state of {sup 212}Po by expanding the parent wave function over a basis containing shell-model- as well as cluster-model-type elements. The resulting decay width agrees with experiment well within the range of the uncertainty inherent in the input of the model. The amount of core +{alpha} clustering in the parent state is found much higher (30%) than former microscopic estimates ({similar to}1%), which shows the soundness of assuming the existence of preformed {alpha} particles with appreciable probability in the initial state.

• OSTI ID: 7105950
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 69:1; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

663210* -- Ground-State Radioactivity-- (1992-)
663580 -- Nuclear Mass Ranges-- A=190-219-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA DECAY
ALPHA DECAY RADIOISOTOPES
CLUSTER MODEL
DECAY
ELECTRONIC EQUIPMENT
EQUIPMENT
EVEN-EVEN NUCLEI
FUNCTIONS
HARMONIC OSCILLATORS
HEAVY NUCLEI
ISOTOPES
LINE WIDTHS
MATHEMATICAL MODELS
NANOSEC LIVING RADIOISOTOPES
NUCLEAR DECAY
NUCLEAR MODELS
NUCLEAR POTENTIAL
NUCLEI
OSCILLATORS
POLONIUM 212
POLONIUM ISOTOPES
POTENTIALS
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SHELL MODELS
WAVE FUNCTIONS
WOODS-SAXON POTENTIAL