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.

arXiv comment29 pages, 9 figures

References in corpus (16)

• Quantum Tunneling in Nuclear Fusion
• Effect of continuum couplings in fusion of halo ${}^{11}$Be on ${}^{208}$Pb around the Coulomb barrier
• Laser Spectroscopic Determination of the 6He Nuclear Charge Radius
• Role of break-up processes in fusion enhancement of drip-line nuclei at energies below the Coulomb barrier
• Transfer/Breakup Modes in the 6He+209Bi Reaction Near and Below the Coulomb Barrier
• Calculations of three-body observables in ^8B breakup
• How does breakup influence the total fusion of ${}^{6,7}$Li at the Coulomb barrier?
• Continuum-discretized coupled-channels method for four-body nuclear breakup in ${}^6$He+${}^{12}$C scattering
• Breakup Threshold Anomaly: New Manifestation of the Dispersion Relation
• Fusion Induced by Radioactive Ion Beams
• Evidence for transfer followed by breakup in 7Li + 65Cu
• Coulomb breakup effects on the elastic cross section of ${}^6$He+${}^{209}$Bi scattering near Coulomb barrier energies
• Three-body continuum discretization in a basis of transformed harmonic oscillator states
• Suppressed fusion cross section for neutron halo nuclei
• 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 (21)

• The continuum discretized coupled-channels method and its applications
• Reexamining closed-form formulae for inclusive breakup: Application to deuteron and ${}^6$Li induced reactions
• 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
• The Onset of Nuclear Structure Effects in Near-Barrier Elastic Scattering of Weakly-Bound Nuclei: ${}^6$He and ${}^6$Li Compared
• ${}^9$Be+${}^{120}$Sn scattering at near-barrier energies within a four body model
• 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
• Sub- and above barrier fusion of loosely bound ${}^6$Li with ${}^{28}$Si
• Systematic study of complete fusion suppression in reactions involving weakly bound nuclei at energies above the Coulomb barrier
• Projectile breakup dynamics for ${}^6$Li + ${}^{59}$Co: kinematical analysis of $\alpha$-$d$ coincidences
• Reaction mechanisms for weakly-bound, stable nuclei and unstable, halo nuclei on medium-mass targets
• Interplay of projectile breakup and target excitation in reactions induced by weakly-bound nuclei
• 6Li direct breakup lifetimes
• Study of 9Be+12C elastic scattering at energies near the Coulomb barrier
• Transfer/Breakup Channel Couplings in Sub-barrier Fusion Reactions
• 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
• Coupled-Channel Effects in Collisions between Heavy Ions near the Coulomb Barrier
• Nucleus-nucleus potential from identical-particle interference