Calculation of the nuclear vertex constant (asymptotic normalization coefficient) for the virtual decay {sup 6}Li {sup {yields}} {alpha} + d on the basis of the three-body model and application of the result in describing the astrophysical nuclear reaction d({alpha}, {gamma}){sup 6}Li at ultralow energies
- Uzbek Academy of Sciences, Institute of Nuclear Physics (Uzbekistan)
Within the ({alpha}, n, p) three-body model, the s-wave {sup 6}Li {sup {yields}} {alpha} + d vertex constant G{sub 01} and the asymptotic normalization coefficient C{sub 01} (these two quantities are proportional to each other) for the wave function describing the {sup 6}Li nucleus in the {alpha} + d channel are calculated by solving Faddeev equations for various sets of nucleon-nucleon and {alpha}N potentials. The resulting values of G{sub 01} and C{sub 01} are used to calculate the astrophysical factor S(E) for the radiative-capture reaction d({alpha}, {gamma}){sup 6}Li at energies in the range E = 0-600 keV. The calculated values of G{sub 01} and C{sub 01} appear to be sensitive to the form of the pair potentials used. It is shown that, upon correctly taking into account the contributions of the E2 and E1 multipolarities, the values of S(E) in the region E < 150 keV are determined primarily by the values of C{sub 01} and of the {sup 6}Li binding energy in the {alpha} + d channel.
- OSTI ID:
- 21076102
- Journal Information:
- Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 3 Vol. 69; ISSN 1063-7788; ISSN PANUEO
- Country of Publication:
- United States
- Language:
- English
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