Exclusive Measurements of Breakup Reactions in the 7Li + 144Sm System

D. MARTÍNEZ HEIMANN; A. J. PACHECO; A. ARAZI; O. A. CAPURRO; P. CARNELLI; D. S. MONTEIRO; J. O. FERNÁNDEZ NIELLO; J. M. FIGUEIRA; L. FIMIANI; P. GRINBERG; H. D. MARTA; G. V. MARTÍ; A. NEGRI; J. E. TESTONI

Chicago, USA.

Conferencia; FUSION 08, International Conference on New Aspects of Heavy Ion Collisions Near the Coulomb Barrier Collisions; 2008

Argonne National Laboratory

Breakup of the projectile-like fragments in reactions induced by a 30-MeV 7Li beam on a 144Sm target was measured through the coincident detection of the light particles emitted in the reaction plane at different angles of their center of mass. The emphasis of the measurements and data analysis was placed in the complete characterization of the reaction by means of the identification of the breakup products and the experimental extraction of the physically relevant magnitudes. The coincident yield of the emitted light particles was compared with the results of calculations that were done assuming different distributions for these magnitudes and taking into account the geometric response of the detection system. The results of this comparison indicate in  all cases a clear dominance of a process compatible with the breakup of 6Li through the 3+ resonant state at 2.186 MeV following one-neutron transfer from the projectile to the target, over the breakup of the projectile itself. Relative cross sections as a function of the emission angle of the 6Li and the in-plane anisotropy of the subsequent emission of breakup products were extracted from the data.