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Influence of magnetic fields on electron-ion recombination at very low energies
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2000 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 84, no 21, 4822-4825 p.Article in journal (Refereed) Published
Abstract [en]

Radiative recombination (inverse photoionization) is believed to be well understood since the beginning of quantum mechanics. Still, modern experiments consistently reveal excess recombination rates at very low electron-ion center-of-mass energies. In a detailed study on recombination of F and C ions with magnetically guided electrons we explored the yet unexplained rate enhancement, its dependence on the magnetic field B, the electron density n(e), and the beam temperatures T-perpendicular to and T-parallel to. The excess scales as T-perpendicular to(-1/2) and, surprisingly, as T-parallel to(-1/2), increases strongly with B, and is insensitive to n(e). This puts strong constraints on explanations of the enhancement.

Place, publisher, year, edition, pages
2000. Vol. 84, no 21, 4822-4825 p.
Keyword [en]
VERY-LOW ENERGIES, DIELECTRONIC RECOMBINATION, RESONANCES, COOLER, TSR
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:miun:diva-2074Scopus ID: 2-s2.0-0000852298Local ID: 1082OAI: oai:DiVA.org:miun-2074DiVA: diva2:27106
Available from: 2008-09-30 Created: 2008-09-30 Last updated: 2016-10-08Bibliographically approved

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Glans, Peter
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