Interference Effects in Fully Differential Ionization Cross Sections near the Velocity Matching in P + He Collisions

Sujan Bastola, Madhav Dhital, Shruti Majumdar, Ahmad Hasan, Ramaz Lomsadze, Jacob Davis, Basu Lamichhane, Sandor Borbély, Ladislau Nagy, Michael Schulz

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

We performed a fully differential experimental and theoretical study on ionization of He in intermediate-energy collisions with protons for a small projectile coherence length. Data were taken for an ejected electron energy corresponding to a speed close to the projectile speed (velocity matching). In the fully differential angular electron distributions, a pronounced double-peak structure, observed previously for a coherence length much larger than the atomic size, is much less pronounced in the current data. This observation is interpreted in terms of interference between first-and higher-order transition amplitudes. Although there is large quantitative disagreement between experiment and theory, the qualitative agreement supports this interpretation.

Original languageEnglish
Article number119
JournalAtoms
Volume10
Issue number4
DOIs
Publication statusPublished - Dec 2022

Keywords

  • atomic collisions
  • coherence
  • ionization

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics
  • Condensed Matter Physics

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