Near and sub-barrier reactions of ⁸B

Abstract

Abstract. Four classes of measurements that are important for achieving a complete understanding of the reactions of exotic nuclei are identified and classified according to their degree of difficulty. Previously reported data for near-and sub-barrier fusion of 8 B+ 58 Ni are critically reviewed. The influence of breakup protons on the evaporation proton measurements for this system is shown to be small at all energies except for the lowest one measured, and corrections are made for this process. Model dependencies in the deduced fusion cross sections are assessed using three different evaporation codes. Data sets for targets of 58 Ni and 28 Si are shown to be consistent with each other, and with fusion enhancement up to energies that are greater than the Coulomb barrier V b (E c.m. V b + 1.5× ω). An important difference with the behavior of neutron-halo systems is thereby confirmed. Possible fusion suppression beyond this energy is suggested by the 28 Si data. A proposal to measure the 8 B+ 40 Ar fusion cross section using an active-target time projection chamber is discussed.

The total reaction cross section of heavy-ion reactions induced by stable and unstable exotic beams: the low-energy regime

“…The discussion of the total reaction cross section for this system was reported in Ref. [190]. The sum of the total fusion plus breakup cross sections gives about the same large total cross section as those extracted from elastic scattering, see Fig.…”

Ti-Induced Fusion Reactions to Synthesis Superheavy Elements

“…The superheavy elements 113 and 115 were synthesized simultaneously in the reaction 243 Am + 48 Ca [6,7]. Most of the models also suggest that the fusion cross-section is low for projectiles heavier than 48 Ca [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26].…”