On the divergency problem of the ECC cusp: A final state interaction theory

R. O. Barrachina, L. Sarkadi

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We demonstrate, as asserted against common knowledge in recent papers by Illescas et al. [Phys. Rev. A 65 (2002) 030703] and Shah et al. [Phys. Rev. A 67 (2003) 010704], that the ECC (Electron Capture to the Continuum) cusp does not diverge and does not exactly peak at the projectile velocity. However, at the same time, we show that to experimentally observe these effects the equipment resolution or the projectile velocity would have to be reduced below prohibitively small values. In particular, both effects would not be observable at the lowest energy that was considered by Illescas et al. and Shah et al.

Original languageEnglish
Pages (from-to)260-265
Number of pages6
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume233
Issue number1-4
DOIs
Publication statusPublished - May 2005

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Projectiles
cusps
electron capture
projectiles
continuums
Electrons
interactions
energy

Keywords

  • Electron capture to the continuum
  • Electron spectra
  • Final state interaction theory
  • Ion impact
  • Ionization
  • Scattering

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Instrumentation
  • Surfaces and Interfaces

Cite this

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T1 - On the divergency problem of the ECC cusp

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AU - Barrachina, R. O.

AU - Sarkadi, L.

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AB - We demonstrate, as asserted against common knowledge in recent papers by Illescas et al. [Phys. Rev. A 65 (2002) 030703] and Shah et al. [Phys. Rev. A 67 (2003) 010704], that the ECC (Electron Capture to the Continuum) cusp does not diverge and does not exactly peak at the projectile velocity. However, at the same time, we show that to experimentally observe these effects the equipment resolution or the projectile velocity would have to be reduced below prohibitively small values. In particular, both effects would not be observable at the lowest energy that was considered by Illescas et al. and Shah et al.

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KW - Ion impact

KW - Ionization

KW - Scattering

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