1,721,269 research outputs found
Effect of the break-up processes on the fusion reactions with weakly bound projectiles
No full textThe possible effects of break-up channels on fusion reactions in collisions induced by weakly-bound projectiles are discussed. In addition to the "static" effects due to variation in the potential following the extended density distributions, attention is devoted to "dynamical" effects due to coupling to reaction channels, in primis the break-up channels. The key issues and the still controversial open problems are discussed
Sub-barrier fusion processes: The case of weakly-bound nuclei
No full textThis lecture reviews the main aspects associated with fusion processes between heavy ions at energies below the Coulomb barrier. We discuss in particular the novel features arising in the case of fusion with weakly-bound nuclei. The role of continuum states and the coupling to break-up channels are particularly emphasized
Reaction dynamics for fusion of weakly-bound nuclei
No full textWe discuss several open problems of fusion reactions induced by weakly bound nuclei. For this purpose, we solve a one dimensional three-body Hamiltonian with the coupled-channels formalism. We show that the continuum-continuum couplings substantially reduce the total fusion probability at energies above the barrier compared with the no-breakup case, although the fusion probability remains enhanced at subbarrier energies. We then discuss a role of transfer process in fusion of weakly bound nuclei, and point out that removing spurious Pauli forbidden transfer components from the calculation may be crucial at energies below the barrier. Calculations based on the three-body classical trajectory Monte Carlo (CTMC) method are also presented in order to discuss how to model complete fusion process
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