The interaction of aligned 7Li with 58Ni

Elastic scattering and total reaction cross sections for theB8,Be7Barioni1, Zamora2, Guimarães3 et al. 2011Phys. Rev. C4711350View full textAdd to dashboardCite

“…It is important to mention that this imaginary potential not only accounts for the absorption of flux, from the breakup to the fusion channel, but also accounts, effectively, for the inelastic excitation of the target. The p-7 Be interaction potential [20] used to generate the bins was the same as the one used in Refs. [12,21], where a good description of the breakup angular distribution, emission-energy distribution, and elastic scattering distributions for the 8 B + 58 Ni system was obtained.…”

Analysis of scattering and reactions of aligned7Li-nuclei in a double folding model

“…In these analyses the 7Li-nucleus was approximated by a uniform rotational ellipsoid with a sharp surface. A parameterized S-matrix in Fresnel approximation [4,13] described the elastic scattering of aligned 7Li on 58Ni. The onset of the strong absorption at the sharp cutoff radius was related to an onset of absorption in orbital angular momentum space (/-space) at the grazing angular momentum.…”

“…In this model, the difference between 7Li-projectiles aligned along the normal to the scattering plane and unpolarized projectiles is manifested mainly as a change of the grazing angular momentum. Furthermore, an optical model ansatz has been used successfully to describe the experimental data for elastic scattering of aligned 7Li on SSNi at 14.2 and 20.3 MeV [4]. A complex TR-tensor potential [14] has been introduced formally by deforming the radius parameter of the complex interaction potential [4,10].…”

“…Furthermore, an optical model ansatz has been used successfully to describe the experimental data for elastic scattering of aligned 7Li on SSNi at 14.2 and 20.3 MeV [4]. A complex TR-tensor potential [14] has been introduced formally by deforming the radius parameter of the complex interaction potential [4,10]. The occurrence of a strong TR-tensor potential in the elastic scattering of VLi on SSNi is supported by theoretical investigations of the scattering amplitudes and their relation to the observed large values for the tensor analyzing powers [15,16].…”

“…Within the sharp cutoff model the deformation is defined at equivalent sharp surfaces, whereas in the S-matrix analysis the deformation is defined at the grazing angular momentum or at the grazing distance. The optical model analysis [4,10] refers to a deformation defined at the radius where the interaction potential reaches half of its central value. Since undoubtfully the data for elastic scattering are not sensitive to this region of the interaction potential the very parameterization of the potential enters the analysis.…”