Investigating Neutron Transfer In The Be-9 + Au-197 System

In this work n-transfer and incomplete fusion cross sections for the Be-9 + Au-197 system are reported over a wide energy range, E-c.m. approximate to 29-45 MeV. The experiment was carried out using the activation technique and off-line gamma counting. The transfer process is found to be the dominant mode as compared to all other reaction channels. Detailed coupled reaction channel (CRC) calculations have been performed for n-transfer stripping and pickup cross sections. The measured 1n-stripping cross sections are explained with CRC calculations by including the ground state and the 2(+) resonance state (E = 3.03 MeV) of Be-8. The calculations for 1n-pickup cross sections, including only the ground state of Be-10 agrees reasonably well with the measured cross sections, while it overpredicts the data at subbarrier energies. For better insight into the role of the projectile structure in the transfer process, a comprehensive analysis of the 1n-stripping reaction has been carried out for various weakly bound projectiles on a Au-197 target nucleus. The transfer cross sections scaled with the square of the total radius of interacting nuclei show the expected Q-value dependence of the 1n-stripping channel for weakly bound stable projectiles.