High resolution calculations of low energy scattering in e−e+p¯ and e+e−He++ systems via Faddeev–Merkuriev equations

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Abstract

The potential splitting approach incorporated into the framework of Faddeev-Merkuriev equations in the differential form is used for calculations of multichannel scattering in e-e+p- and e+e-He++ systems. Detailed calculations of all possible S-wave cross-sections are performed in the low-energy region which supports up to seven open channels including the rearrangement channels of ground and excited states of antihydrogen, positronium and helium ion formations. All known sharp resonances of the systems obtained and approved by a number of authors are clearly reproduced in the calculated cross sections. In cross sections for energies above the threshold corresponding to n=2 state of antihydrogen the prominent oscillations of Gailitis-Damburg type have been found.

Translated title of the contributionРасчеты с высоким разрешением низкоэнергетического рассеяния в e−e+p¯ и e+e−He++ системах с помощьую уравнений Фаддеева
Original languageEnglish
Article number055202
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume52
Issue number5
DOIs
StatePublished - 2019

Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

Keywords

  • Antihydrogen formation
  • Faddeev-Merkuriev equations
  • Positron scattering

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