We have performed precision elastic backscattering measurements for the weakly bound nuclei Li-6,Li-7 on the medium and heavy mass targets Ni-58, Sn-116,Sn-120 and Pb-208 at sub- and near-barrier energies (E-c.m./V-bar = 0.6 to 1.3). Excitation functions of elastic scattering cross-sections have been measured at +/- 160 degrees and +/- 170 degrees and the corresponding ratios to Rutherford scattering and relevant barrier distributions have been extracted. These measurements complement recent work on a Si-28 target, for probing systematically the potential at sub- and near-barrier energies and relevant reaction mechanisms, while indicate a possible breakdown of the dispersion relation.
|Titolo:||Quasi-elastic backscattering of Li-6,Li-7 on light, medium and heavy targets at near- and sub-barrier energies|
|Data di pubblicazione:||2012|
|Appare nelle tipologie:||1.1 Articolo in rivista|