The α + α → 8Be double resonance at the 16.6 and 16.9 MeV levels
作者： F. Hinterberger , P.D. Eversheim , P. Von Rossen , B. Schüller , R. Schönhagen
DOI: 10.1016/0375-9474(78)90379-2
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摘要: Abstract The elastic scattering 4 He(α, α) has been investigated in the energy range 32.6–35.4 MeV. level parameters of overlapping 2 + states 8 Be at 16.6 and 16.9 MeV were obtained with a double resonance formalism. In R -matrix theory energies widths are 16623 ± 3 keV, 107.7 0.5 keV 16925 74.4 0.4 respectively. complex-eigenvalue 16630 108.5 16918 73.6 relation between parameter sets is discussed. present results compared previous investigations where formed as product nucleus. isospin mixing doublet deduced charge-dependent matrix element discussed regard to theoretical predictions.
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