Abstract
We discuss calculations of total reaction cross sections between complex nuclei, using optical limit and few-body Glauber models in which the free nucleon-nucleon cross sections are replaced by their (reduced) values in the nuclear medium. This replacement lowers by at most a few percent when is determined from the local matter density in each overlapping volume element of the significant projectile-target trajectories. This relatively small effect contrasts with reductions of about 10% in reported by Xiangzhou et al., who assume a global value for the matter density throughout the interaction region. For two-neutron halo nuclei, we investigate the significance of these in-medium effects for the neutron-removal cross sections, We show that use of an in-medium raises for but lowers it for because of their different halo sizes.
- Received 18 October 2001
DOI:https://doi.org/10.1103/PhysRevC.65.044617
©2002 American Physical Society