Break-up and electromagnetic response of light weakly-bound dicluster systems

Abstract

This study is focused on the break-up and electromagnetic response of light weakly-bound dicluster nuclei. The cluster picture in the case of $^7$Li is shown to be a very good approximation and in this framework we calculate nuclear structure observables. We solve the Schr\"odinger equation for the relative motion both for discrete and continuum states and this automatically takes into a proper account the role of resonances. A concentration of strength in the low energy continuum, solely due to the weakly-bound nature of the bound states is seen and explained as a favourable matching between the wavelengths of the initial and final states. Finally preliminary results on form factors are briefly outlined and their microscopic derivation as well as utilization in reaction studies is discussed.Comment: Contribution to the "Symposium on Nuclear Clusters:from Light Exotic to Superheavy Nuclei" 284. WE-Heraeus-Seminar, help in Rauischholzhausen (near Marburg) Germany, 5--9 August 2002. 2 pages, 1 combined figure, rauisch.sty use