Study of reactions induced by⁶He on⁹Be

Abstract

Abstract. We present the results of experiments using a 6 He beam on a 9 Be target at energies 7 − 9 times the Coulomb barrier. Angular distributions of the elastic, inelastic scattering (target breakup) and the α-particle production in the 6 He+ 9 Be collision have been analysed. Total reaction cross sections were obtained from the elastic scattering analyses and a considerable enhancement has been observed by comparing to stable systems.

Elastic scattering, fusion, and breakup of light exotic nuclei

“…Elastic scattering of 6 He on 9 Be has been measured at an incident energy of 16.8 MeV by Majer et al [4], as part of a project to study 7 He produced via the 9 Be( 6 He, 8 Be) 7 He reaction. The measured angular distribution, shown in fig.…”

“…An additional analysis of this same data set was presented in ref. [8]. Average total reaction cross sections of 1525(104) mb and 1527(106) mb at 16.2 MeV and 21.3 MeV, respectively, were deduced.…”

“…An explanation for this difference was given in terms of mixing of bound and unbound levels in 199 Au. Fusion of 8 He with 206 Pb was studied by Parkar et al [54] at energies near the Coulomb barrier, using a radiochemical technique with stacked targets of 206 Pb separated by mylar and Al spacers. The yield of the 210 Po evaporation residue (half-life of 138 days) was counted off-line after the Pb targets were dissolved and a 209 Po tracer was added.…”

“…Although the short-lived radioactive nucleus 8 Li is not considered to be exotic, its low 1n separation energy threshold of 2.03 MeV means that it is a weakly-bound nucleus, as are the stable isotopes 6 Li and 7 Li. The main motivation of the many experiments performed with 8 Li beams is its role in primordial nucleosynthesis (see, e.g., ref.…”

“…The main motivation of the many experiments performed with 8 Li beams is its role in primordial nucleosynthesis (see, e.g., ref. [61]).…”