O17+Ni58scattering and reaction dynamics around the Coulomb barrier

Abstract

1) Poor statistics, since RIB intensities are still several orders of magnitude lower than their stable counterparts.(2) The need to identify all reaction products, which may differ by only a few mass units and, in the case of neutrons, the need for high efficiency detection systems with sufficient angular resolution. (3) The cross sections for key processes may be very small, requiring rather long acquisition times, or show complicated kinematics, which might require coincidence measurements of reaction products in order to disentangle the reaction mechanisms.Nevertheless, important information on a colliding system can be extracted by analyzing the elastic scattering, which in the past decades was a powerful tool for studies in the fields of nuclear structure, nuclear reaction theory, and nuclear astrophysics. Recently, the elastic scattering regained importance since, in the case of weakly bound and exotic nuclei, precise measurements can be analyzed in the framework of the optical model potential (OMP), giving information on the geometrical properties of the collision participants which might be very 2469-9985/2016/94(2)/024622 (11) 024622-1

Reaction channel contributions to the triton optical potential

“…[26] 178 and the corresponding nuclear deformation length δ 3 was 179 taken from Ref. [27]. The full complex remnant term and 180 nonorthogonality correction were included in the PU calcu-181 lations.…”

Reaction channel contributions to the helion optical potential

“…[24] and the corresponding nuclear deformation length δ 3 from Ref. [25]. The full complex remnant term and nonorthogonality correction were included in the PU calculations.…”

Discrimination of Processes and Optical Model Analysis in the $^{17}$O+$^{58}$Ni Collision Around the Coulomb Barrier

“…The angular distributions for the elastic scattering process were extracted by the self-normalization formula in [2] and analyzed in the Optical Model framework employing Woods-Saxon potentials for both real and imaginary part. The geometrical parameters for the real part approximately converged to the standard values, in fact little differences can be noticed, i.e.…”

“…The experiment was performed at the Laboratori Nazionali di Legnaro, Italy, employing the experimental setup described in [2] (shown in the lefthand side of Fig. 1) and exploring a beam energy range of 40-50 MeV with steps of 2.5 MeV.…”