Abstract
Differential cross sections for elastic-scattering and neutron-transfer reactions along with cross sections for fusion in the $^{8}\mathrm{He}$$+$$^{65}\mathrm{Cu}$ system are reported at energies above the Coulomb barrier (${E}_{\mathrm{lab}}=$ $19.9$ and $30.6$ MeV). The present work demonstrates the feasibility of using inclusive measurements of characteristic in-beam $\ensuremath{\gamma}$ rays with low-intensity ($~$$10$${}^{5}$ pps) radioactive ion beams to obtain the residue cross sections for fusion and neutron transfer. Exclusive measurements of $\ensuremath{\gamma}$ rays in coincidence with light charged particles have been used to further characterize the direct reactions induced by this double-Borromean nucleus. Coupled reaction channels calculations are used to illustrate the important role played by the transfer channels and to help in understanding the influence of the structure of $^{8}\mathrm{He}$ on the reaction mechanism.
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