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

2007/03/27 by C. Beck, N. Keeley, A. Díaz-Torres +1 · 112 citations
Physics and Astronomy · #Astronomical and nuclear sciences #Atomic and Molecular Physics #Atomic physics #Bound state #Breakup #Coulomb #Coulomb barrier #Coupling (piping) #Elastic scattering #Excitation #Fusion #Halo #Halo nucleus #Materials science #Mechanics #Nuclear fusion #Nuclear physics #Nuclear physics research studies #Optics #Physics #Projectile #Quantum mechanics #Scattering #nucl-ex #nucl-th

paper · pdf · doi:10.1103/physrevc.75.054605

published in Physical Review C 75(5) (American Institute of Physics) · 29 pages, 9 figures

arxiv created 2007/03/27 · openalex publication_date 2007/05/08 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06

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 ^6,7Li+⁵⁹Co. Continuum-discretized coupled-channels (CDCC) calculations describe well the data at and above the barrier. Elastic scattering with ⁶Li (as compared to ⁷Li) indicates the significant role of breakup for weakly bound projectiles. A study of ^4,6He induced fusion reactions with a three-body CDCC method for the ⁶He halo nucleus is presented. The relative importance of breakup and bound-state structure effects on total fusion is discussed.

Citations

• FUSION INDUCED BY RADIOACTIVE ION BEAMS
• Continuum-discretized coupled-channels calculations for three-body models of deuteron-nucleus reactions
• Quantum tunneling in nuclear fusion
• Three-body continuum discretization in a basis of transformed harmonic oscillator states
• The threshold anomaly in 16O + 208Pb scattering
• Calculations of three-body observables in8Bbreakup
• How does breakup influence the total fusion ofLi<mml:mprescripts/><mml:none/>6,7at the Coulomb barrier?
• Laser Spectroscopic Determination of theH<mml:mprescripts/><mml:none/>6eNuclear Charge Radius

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• Systematic study of suppression of complete fusion in reactions involving weakly bound nuclei at energies above the Coulomb barrier