TOTAL AND 2N-REMOVAL CROSS-SECTIONS OF THE NEUTRON-RICH ISOTOPES LI-8,LI-9,LI-11

Total interaction cross sections have been measured for Li-8 on C and Pb targets, for Li-9 on C, Al, Cu, Sn and Pb targets, as well as for L i-11 on C, Sn and Pb targets at about 80 MeV/nucleon. In addition, 2n- removal cross sections for Li-11 have been extracted. These measuremen ts are used to determine the nuclear and the electromagnetic part of t he cross sections for the different projectile-target combinations. Th e experimental results are compared to different model calculations. T hese comparisons allow one to draw conclusions on the matter density d istribution of the neutron-rich lithium isotope Li-11. By comparing ou r data on the electromagnetic dissociation of Li-11 with all the other data available in the literature, we are able to put constraints on t he dipole-strength distribution in Li-11. [GRAPH