Elastic scattering and total reaction cross sections for theB8,Be7

Abstract

Angular distributions for the elastic scattering of 8 B, 7 Be and 6 Li on 12 C target have been measured at E lab = 25.8 MeV, 18.8 MeV and 12.3 MeV, respectively. The analyses of these angular distributions have been performed in terms of the optical model using Woods-Saxon and double-folding type potentials. The effect of breakup in the elastic scattering of 8 B + 12 C is investigated by performing coupled-channels calculations with the Continuum Discretized Coupled Channel (CDCC) method and cluster-model folding potentials. Total reaction cross sections were deduced from the elastic scattering analysis and compared with published data on elastic scattering of other weakly-and tightly-bound projectiles on 12 C, as a function of energy. With the exception of 4 He and 16 O, the data can be described using a universal function for the reduced cross sections.

Probing the exotic structure of 8B by its elastic scattering and breakup reaction on nuclear targets

“…2 and compared with the experimental data [28]. It can be seen that in both cases of calculations with VMC or 3CM densities the results are in good agreement with the available data.…”

“…Our results reproduce the experimental data better than the analysis of the data [28] with optical-model calculations using São Paulo potential with energy dependence and nonlocality correction [58]. The imaginary part of the latter potential has the same form factor as the real part that has not been renormalized (N R = 1), but with a normalization of N I = 0.78.…”

“…To describe the elastic-scattering angular distributions and total reaction cross sections conventional optical-model with Woods-Saxon (WS) potentials or double-folding (DF) OPs calculations were performed. The effect of breakup on the elastic scattering was investigated for the weakly bound 8 B nucleus by performing continuum discretized coupled-channels (CDCC) calculations [28,29,30,31,32,33,34]. It was found that for the light 12 C target this effect is negligible for description of the elastic scattering data [28,31].…”

“…The idea of the existence of a proton halo in 8 B was experimentally verified also in measurements and studies of differential cross sections of 8 B elastic scattering on different nuclear targets in the energy range 20-170 MeV [28,29,30]. To describe the elastic-scattering angular distributions and total reaction cross sections conventional optical-model with Woods-Saxon (WS) potentials or double-folding (DF) OPs calculations were performed.…”

Near-barrier fusion and total reaction of a proton-rich projectile:3He+58Ni

“…However, in a latter work where reactions of several projectiles with a 12 C target were considered, the separation between halo and weakly-bound systems seems to disappear for this light target, see [36] …”