Differential and total cross sections of noncapture breakup reactions in the 6 Li+144 Sm system

DIEGO MARTINEZ HEIMANN; ALBERTO PACHECO; OSCAR CAPURRO; ANDRES ARAZI; CHRISTIAN BALPARDO; MARIA ANGÉLICA CARDONA; PATRICIO FRANCISCO FLORENCIO CARNELLI; EZEQUIEL DE BARBARÁ; JORGE FERNANDEZ NIELLO; JUAN MANUEL FIGUEIRA; DANIEL HOJMAN; GUILLERMO MARTI; AGUSTIN NEGRI; DARIO PABLO RODRIGUES FERREIRA MALTEZ

PHYS. REV. - C

AMER PHYSICAL SOC

Lugar: New York; Año: 2014 vol. 89 p. 1 - 14

0556-2813

The breakup of the projectile-like fragments in reactions induced by 6Li beams on a 144Sm target at energies close to the Coulomb barrier has been measured through the coincident detection of the emitted light particles. The emphasis of the measurements and the data analysis were placed in the complete characterization of the alpha-deuteron breakup mode by means of the identification of the breakup fragments and the determination of the total Q value, relative energy of the breakup products, and the angular distribution of their emission. Within the ranges of these variables covered by the present measurements, the results for the 6Li-->d+alpha mode show a clear dominance of the resonant channel through the 3+ state at 2.186 MeV over other resonant and nonresonant channels. Differential cross sections as a function of the center-of-mass angles of the intermediate binary collision and of the breakup emission, as well as integrated cross sections as a function of energy, have been obtained.The data are compared with those measured for competing processes in the same system and with the resultsof calculations based on a dynamic classical model that describes noncapture breakup, incomplete fusion, andcomplete fusion.