Scattering of nucleons from nuclei with couplings to particle-unstable excited states

P. R. Fraser, K. Amos, L. Canton, S. Karataglidis, J. P. Svenne, D. van der Knijff

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


The physics of radioactive ion beams implies the description of weakly-bound nuclear systems. One key aspect concerns the coupling to low-lying collective-type excited states, which for these systems might not be stable levels, but particle emitting resonances. In this work we describe how the scattering cross section and compound spectra change when the colliding fragments have such collective excitations featuring particle emission. We explore this question in the framework of a multi-channel algebraic scattering method of determining nucleon-nucleus cross sections at low energies. For a range of light-mass, particle-unstable nuclear targets, scattering cross sections as well as the spectra of the compound nuclei formed have been determined from calculations that do and do not consider particle emission widths for nuclear states. Assuming a resonance character for target states markedly varies evaluated cross sections from those obtained assuming the target spectrum to have entirely discrete states.

Original languageEnglish
Pages (from-to)20-29
Number of pages10
JournalRevista Mexicana de Fisica
Issue number1
Publication statusPublished - 2011


  • Neutron scattering
  • Nuclear reactions
  • Proton scattering
  • Radioactive ion beams
  • Resonances

ASJC Scopus subject areas

  • General Physics and Astronomy


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