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Article overview
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Target effects in negative-continuum assisted dielectronic recombination | | V. A. Yerokhin
; A. N. Artemyev
; V. M. Shabaev
; Th. Stöhlker
; A. Surzhykov
; S. Fritzsche
; | | Date: |
14 Oct 2015 | | Abstract: | The process of recombination of a quasi-free electron into a bound state of
an initially bare nucleus with the simultaneous creation of a
bound-electron--free-positron pair is investigated. This process is called the
negative-continuum assisted dielectronic recombination (NCDR). In a typical
experimental setup, the initial electron is not free but bound in a light
atomic target. In the present work, we study the effects of the atomic target
on the single and double-differential cross sections of the positron production
in the NCDR process. The calculations are performed within the relativistic
framework based on QED theory, with accounting for the electron-electron
interaction to first order in perturbation theory. We demonstrate how the
momentum distribution of the target electrons removes the non-physical
singularity of the differential cross section which occurs for the initially
free and monochromatic electrons. | | Source: | arXiv, 1510.4135 | | Services: | Forum | Review | PDF | Favorites | |
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