Title

High-energy two-electron capture with emission of a single photon

Authors

Authors

E. G. Drukarev; A. I. Mikhailov; I. A. Mikhailov;W. Scheid

Comments

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Abbreviated Journal Title

Phys. Rev. A

Keywords

DOUBLE-ELECTRON CAPTURE; ATOMIC WAVE-FUNCTIONS; RELATIVISTIC U92+; COLLISIONS; GAS-JET TARGET; ANALYTIC EXPANSIONS; COORDINATE SYSTEMS; DOUBLE PHOTOIONIZATION; HEAVY-IONS; HELIUM; EQUATION; Optics; Physics, Atomic, Molecular & Chemical

Abstract

We investigate the two-electron capture with emission of a single photon to the ground state in the Coulomb field of a heavy nucleus in its collision with a light atom. Describing electron-electron interactions in the bound state perturbatively, we obtained an analytical formula for the high-energy limit of the cross section. In combination with previous results obtained in the same approach we calculated the cross section in a broad interval of energies of the collision. We show that the amplitude of the process at high energy depends on the behavior of the bound state wave function near the triple coalescence point. We analyze the properties of the approximate wave functions which are necessary for the description of the high-energy limit.

Journal Title

Physical Review A

Volume

76

Issue/Number

6

Publication Date

1-1-2007

Document Type

Article

Language

English

First Page

13

WOS Identifier

WOS:000251985900059

ISSN

1050-2947

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