Breakup coupling effects on near-barrier ⁶Li, ⁷Be and ⁸B + ⁵⁸Ni elastic scattering compared

Keeley, N.; Mackintosh, R. S. and Beck, C. (2010). Breakup coupling effects on near-barrier ⁶Li, ⁷Be and ⁸B + ⁵⁸Ni elastic scattering compared. Nuclear Physics A, 834(1-4) 792c-795c.

DOI: https://doi.org/10.1016/j.nuclphysa.2010.01.148

Abstract

New data for near-barrier ⁶Li, ⁷Be and ⁸B + ⁵⁸Ni elastic scattering enable a comparison of breakup coupling effects for these loosely-bound projectiles. Coupled Discretised Continuum Channels (CDCC) calculations suggest that the large total reaction cross sections for ⁸B + ⁵⁸Ni are dominated by breakup at near-barrier energies, unlike ⁶Li and ⁷Be where breakup makes a small contribution. In spite of this, the CDCC calculations show a small coupling influence due to breakup for ⁸B, in contrast to the situation for ⁶Li and ⁷Be. An examination of the S matrices gives a clue to this counter-intuitive behaviour.

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