Zero-Energy Resonance Effects in Break-up Collisions

  • J. Fiol
  • C. Courbin
  • V. D. Rodríguez
  • R. O. Barrachina
Part of the Few Body Systems book series (FEWBODY, volume 13)


We show that the analysis of cusp and threshold structures in breakup collisions of nuclei, atoms and molecules represents an alternative approach for the study of elastic two-particles collisions at extremely low-energies. We illustrate these general ideas by showing that the “electron capture to the continuum” cusp in the ionization of atoms by neutral projectiles can be understood in terms of a resonance mechanism. This approach allows for the extraction of the s-wave scattering length for the electron-projectile interaction.


Double Differential Cross Section Distortion Factor Proton Impact Laboratory Reference Frame Threshold Structure 
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Copyright information

© Springer-Verlag 2001

Authors and Affiliations

  • J. Fiol
    • 1
  • C. Courbin
    • 2
  • V. D. Rodríguez
    • 3
    • 4
  • R. O. Barrachina
    • 1
    • 4
  1. 1.Centro Atómico Bariloche and Instituto BalseiroS. C. de Bariloche, Río NegroArgentina
  2. 2.Laboratoire de Dynamique des Ions, Atomes et MoleculesUniversité P et M CurieParis Cedex 05France
  3. 3.Departamento de Física, FCEyNUniversidad de Buenos AiresBuenos AiresArgentina
  4. 4.Argentina

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