Exploring the breakup and transfer coupling effects in 9 Be elastic scattering

TLDR: In this paper, two cluster structures, namely, (1) the one-neutron stripping channel and (2) the break-up, were considered to describe the elastic scattering for a be projectile with three types of targets: Si, Zn and Sm.

Abstract: Two cluster structures of ${}^{9}$Be, namely, ${}^{5}$He + ${}^{4}$He and ${}^{8}$Be + $n$, have been considered for its breakup to describe the available data on elastic scattering for a ${}^{9}$Be projectile with ${}^{28}$Si, ${}^{64}$Zn, and ${}^{144}$Sm targets. The results of these calculations suggest that the breakup coupling effects are significant for the ${}^{5}$He + ${}^{4}$He cluster model above the barrier energies, while they are dominant at relatively lower energies for the ${}^{8}$Be + $n$ model. The addition of a one-neutron stripping channel in the ${}^{8}$Be + $n$ model gives an overall good description of the elastic data for all the systems considered. The couplings generated by breakup in the ${}^{8}$Be + $n$ model have a behavior different from the coupling effects obtained within the ${}^{5}$He + ${}^{4}$He model, the former being more prominent at lower energies and for the heavier target systems. The behavior of extracted dynamic polarization potentials generated due to breakup and one-neutron transfer coupling has been investigated.