Systematics of fusion barriers obtained with a modified proximity potential

Consistent analysis of fusion data without adjustable parameters for a wide variety of heavy-ion systems

“…Large enhancements of the data relative to the BPM cross sections can be observed, and the ZPM results are in much better agreement with the data. The heavier systems present larger enhancements than the lighter ones, as was already reported many years ago [2]. This behavior is due to the increasing values of couplings strengths (F ) for heavier systems.…”

“…Even so, many questions in this field are not completely solved yet. It is well known that fusion cross section data for heavy-ion systems show large enhancements at sub-barrier energies in comparison with theoretical predictions from the unidimensional barrier penetration model (BPM) [2]. In many works (e.g., [3,4]), the enhancements have been explained for several particular systems by considering the internal structure of the participating nuclei through coupled-channel (CC) calculations.…”

On the applicability of classical description to the statistical angular distributions in heavy ion reactions

“…With e increasing and J and l being fixed, Aq approaches its maximal (saturation) value Aq "ax. For ~ov, when only one term with j=lJ-ll survives in the sums over j in (14), the dispersion m 2, nevertheless, does not turn into zero but reaches some minimal value (mq2) rain which corresponds to the anisotropy Aq aX. The dependences of m 2 and A on the value of characteristic parameter c~J1 are shown in Fig.…”

Effect of Barrier Height on Nuclear Fusion

“…The probability of fusion of two heavy ions at energies below their mutual interaction barrier, is defined by a barrier radius given due to different reasonable forms [1,2]as:…”