Coupled-channels effects in elastic scattering and near-barrier fusion induced by weakly bound nuclei and exotic halo nuclei

Abstract

The influence on fusion of coupling to the breakup process is investigated for reactions where at least one of the colliding nuclei has a sufficiently low binding energy for breakup to become an important process. Elastic scattering, excitation functions for sub-and near-barrier fusion cross sections, and breakup yields are analyzed for ${}^{6,7}$Li+${}^{59}$Co. Continuum-Discretized Coupled-Channels (CDCC) calculations describe well the data at and above the barrier. Elastic scattering with ${}^6$Li (as compared to ${}^7$Li) indicates the significant role of breakup for weakly bound projectiles. A study of ${}^{4,6}$He induced fusion reactions with a three-body CDCC method for the ${}^6$He halo nucleus is presented. The relative importance of breakup and bound-state structure effects on total fusion is discussed.

29 pages, 9 figures

References in corpus (3)

• Three-body continuum discretization in a basis of transformed harmonic oscillator states
• Core Transitions in the Breakup of Exotic Nuclei
• Near-barrier Fusion and Breakup/Transfer induced by Weakly Bound and Exotic Halo Nuclei

Cited by in corpus (10)

• The continuum discretized coupled-channels method and its applications
• Modelling incomplete fusion dynamics of weakly-bound nuclei at near-barrier energies
• Reaction mechanisms in the 6Li+59Co system
• The study of threshold behaviour of effective potential for ${}^6$Li+${}^{58,64}$Ni systems
• Fusion cross sections for 6,7Li + 24Mg reactions at energies below and above the barrier
• Probing transfer to unbound states of the ejectile with weakly bound 7Li on 93Nb
• Interplay of projectile breakup and target excitation in reactions induced by weakly-bound nuclei
• Study of 9Be+12C elastic scattering at energies near the Coulomb barrier
• Application of the Lagrange mesh method in continuum-discretized coupled-channels calculations
• Cluster Model For Reactions Induced By Weakly Bound And/Or Exotic Halo Nuclei With Medium-Mass Targets