Event Fractions and Probabilities for 11Be + 209Bi Reaction in the Multibody 3-Stage Classical Molecular Dynamics Approach

Abstract

Unique structures that differ radically from ordinary nuclear matter have been demonstrated by Halo nuclei. Among other halo nuclei, the 11Be nucleus is one of the most studied halo nuclei, and it has a well-established one-neutron halo structure with neutron separation energy Sn = 0.501 MeV. We have studied ¹¹Be + ²⁰⁹Bi reaction in the multibody 3-Stage Classical Molecular Dynamics (3S-CMD) model, where 11Be is constructed as a cluster of tightly bound ¹⁰Be and one neutron. The separation between 10Be and neutron is adjusted to set the ion-ion potential between them equal to the experimental neutron separation energy. For this reaction, we have calculated fractions of events F(b) for given impact parameter, b and collision energy ECM and event probabilities P(ECM) by integrating F(b) over all the values of b ≤ b_max (b_max is impact parameter above which all trajectories results in scattering) for the given ECM. Here in present calculations, it is found that for near barrier energies, neutron transfer is significant for lower impact parameters, but at far above barrier energies, complete fusion dominates for lower impact parameters, while for slightly higher impact parameters, neutron transfer is accountable.