Fusion and direct reactions for strongly and weakly bound projectiles

Sub- and above-barrier fusion of loosely bound 6Li with 28Si

“…The measured fusion cross sections at above barrier energies ( Fig. 2), showed good agreement with 1D BPM estimates and the previous measurement by [27] using the evaporation α measurement method, except at two higher energies points at E c.m. ≥ 2V b .…”

“…The present fusion data was also compared with the existing fusion measurement of the same system by Hugi et al [27], at energies above the barrier. Experimental fusion data for the same system, measured by [27], are also shown (open circles) for comparison.…”

Fusion cross sections for 7Li + 12C system at near barrier energies

“…Interestingly, in the case of 6,7 Li + 28 Si, Pakou et al [46,47] have observed larger transfer cross-sections relative to fusion at near barrier energies. Whereas, Hugi et al [33] have reported a larger contribution of fusion compared to direct reaction for 6 Li + 28 Si at above barrier energies. For weakly bound non-halo projectiles 6,7 Li, 9 Be, studies with light targets like 16 O, 11 B,9 Be [48,49] have found fusion cross-sections comparable to reaction cross-sections, implying less contribution from the direct reaction process.…”

“…[33,34] was followed in the present work. We determined the fusion cross section by measuring the alpha particle spectra at several angles, followed by a statistical model analysis of the data.…”

“…The alpha energy spectra and the angular distributions were fitted following the method of Refs. [33,34] and the fusion cross section was optimised. Hence the experimental σ Fus values were obtained from statistical model analysis of the measured alpha data.…”