Measurement of total reaction cross sections of exotic neutron-rich nuclei

Abstract

Total reaction cross sections of neutron-rich nuclei from C to Mg in a thick Si target have been measured by the detection of the associated \ensuremath{\gamma} rays in a 4\ensuremath{\pi} geometry. This cross section strongly increases with neutron excess, indicating an increase of as much as 15% of the reduced strong absorption radius with respect to stable nuclei.