Alpha-gamma angular correlation studies of the reactions Si28(α, α′γ1.77) and O16(α, α′γ6.13)

doi:10.1016/0029-5582(65)90613-9

Nuclear Physics

Volume 61, Issue 4, January 1965, Pages 641-656

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Abstract

Alpha-gamma angular correlations have been measured between inelastically-scattered alpha particles and de-excitation gamma rays from the reactions Si²⁸(α, α′γ_1.777) and O¹⁶(α, α′γ_6.13). All measurements were made in the reaction plane. The Si²⁸ reaction involves the excitation of a 2⁺ level; angular correlations were measured at 41 scattering angles for this case. A 3⁻ excitation is involved in the O¹⁶ reaction; angular correlations were measured at 24 scattering angles for this case. In both cases the data are found to disagree with the predictions of the plane-wave Born approximation (PWBA) and the adiabatic approximation. The results of three distorted-wave Born approximation (DWBA) calculations for the Si²⁸ reaction are presented. One of these calculations is shown to provide a reasonably good explanation of the experimental data at forward scattering angles.

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^††: Work supported by the National Science Foundation.

^†: Now at Department of Physics, State University of Iowa, Iowa City, Iowa.

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Nuclear Physics

Abstract

References (16)

Nuclear Physics

Phys. Lett.

Nuclear Physics

Nuclear Physics

Nuclear Instr.

Phys. Lett.

Phys. Lett.

Cited by (17)

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Magnetic sub-state population cross sections in inelastic alpha-nucleus scattering

Determination and DWBA analyses of transition matrix elements in the reaction <sup>26</sup>Mg(α,α′γ)<sup>26</sup>Mg