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- Title
Investigation of the mechanism of inelastic alpha-particle scattering on Si nuclei by the method of angular αγ correlations at E = 30.3 MeV.
- Authors
Galanina, L. I.; Zelenskaya, N. S.; Konyukhova, I. A.; Lebedev, V. M.; Orlova, N. V.; Spassky, A. V.
- Abstract
The angular dependence of the differential cross sections for alpha-particle scattering on Si nuclei and double-differential cross sections for the reaction Si( α, αγ)Si at E = 30.3 MeV is measured for the case of alpha-particle emission angle between 20° and 160° and the excitation of low-lying states of the Si nucleus (0, ground state; 2 state at 1.78 MeV; 4 state at 4.62 MeV; 0 state at 4.96 MeV; and 3 + 4, 6.88 MeV + 6.89 MeV). The spin-tensor components of the density matrix for the 2 state at 1.78 MeV and the 4 state at 4.62 MeV in the Si* nucleus are reconstructed in a modelindependent way. Seven rank-6 components are reconstructed for the 3 state at 6.88 MeV. Orientation features of Si* are determined. The experimental data in question are compared with the results of the calculations performed under the assumption of the collective-excitation mechanism and by the coupled-channel method.
- Subjects
COLLISIONS (Nuclear physics); ALPHA particle scattering; MATRIX mechanics; SILICON; QUANTUM theory
- Publication
Physics of Atomic Nuclei, 2010, Vol 73, Issue 8, p1339
- ISSN
1063-7788
- Publication type
Article
- DOI
10.1134/S1063778810080077