Abstract
The elastic scattering angular distributions for the weakly bound nuclei 6Li and 7Li on 64Zn were measured in a wide angular range at energies around the Coulomb barrier. In addition, the excitation functions of quasi-elastic scattering at backward angles were measured and the corresponding barrier distributions were derived. The experimental data were analysed within the continuum-discretized-coupled-channel method. In this contribution, we will present a detailed study concerning the effects of the break-up channels in the 6,7Li +64 Zn reactions.
Highlights
Many efforts have been concentrated on the study of nuclear collisions at energies around the Coulomb barrier induced by the halo and stable weakly bound nuclei, such as 6Li and 7Li
The Continuum-Discretized Coupled-Channels (CDCC) method has been applied to describe reactions induced by weakly bound nuclei, using a three-body model of the reaction [18,19,20,21]
Experimental results for the 6,7Li+64Zn reactions at energies around the Coulomb barrier have been studied within the CDCC framework
Summary
Many efforts have been concentrated on the study of nuclear collisions at energies around the Coulomb barrier induced by the halo and stable weakly bound nuclei, such as 6Li and 7Li (see, e.g. Ref. [1] and references therein). The barrier distribution method has been proposed as a powerful tool to study the effects of couplings to different reaction channels at near-barrier energies [7,8,9]. [11,12,13,14], excitation functions for QEL and/or elastic scattering at backward angles, and the corresponding barrier distribution, have been measured and analyzed for several reactions involving 6,7Li. The results show that the effects of coupling to break-up channels are large for 6Li and smaller for 7Li. Recently, a systematic study of the 6,7Li + 64Zn collisions at energies around the Coulomb barrier has been performed [15,16,17]. To extend the coupledchannel calculations including the continuum states of the projectile and to investigate in detail the effects of such couplings, Continuum-Discretized Coupled-Channel (CDCC) calculations have been performed and presented in this contribution
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