Quasi-elastic scattering measurements in the systems 6;7Li on 144Sm

O. A. CAPURRO; A. ARAZI; J. O. FERNÁNDEZ NIELLO; J. M. FIGUEIRA; G. V. MARTÍ; D. MARTÍNEZ HEIMANN; A. NEGRI; A. J. PACHECO; D. S. MONTEIRO; D. R. OTOMAR; P. R. S. GOMES; V. GUIMARÃES

São Sebastião, São Paulo, Brazil

Workshop; XXXI Reunião de Trabalho sobre Física Nuclear; 2008

In the present work, results of measurements of quasi-elastic scattering cross sections using a silicon-telescope detector at backward angles are reported. They allowed us to deduce fusion barrier distributions from the first derivative of the corresponding excitation function (-d(dsigma_qes/dsigma_Rut)/dE). We report data for the systems 6,7Li on 144Sm which are characterized by loosely bound projectiles onto a closedneutron shell target. The experimental excitation functions and the associated barrier distributions arecompared for both systems.