Measurement of fusion excitation functions of 27, 29, 31Al + 197Au
Abstract:A systematic study of the sub-barrier fusion reactions with neutron-rich projectiles has been carried out for three isotopes 27,29,31Al bombarding a 197Au target. A target chamber equipped with a target stack and sets of MWPC was employed in order to enhance the efficiency of the radioactive beam experiment. Coupled-channel calculations including the quadrupole excitations do not well fit the measured fusion excitation functions, whereas flat barrier distributions to represent the coupling to the neutron transfer largely account for the observed enhancement of the sub-barrier fusion cross-sections.