Anisotropy and polarization in charge changing collisions of C4+ with Na(3s) and laser aligned Na(3p)

5) emission at 465.7 nm after collisions of C4+ ions with ground state Na(3s) and laser excited aligned Na(Sp) atoms are measured over the collision energy range of 3-7 keV amu(-1). For Na(3s) polarizations are observed by measuring the linear polarization of the emitted light. In these collisions the polarization is found to be 0.33 and almost independent of the collision energy. Cross sections for collisions with the Na(3p) target are up to five times larger than for collisions with Na(3s). Slightly larger cross sections are measured when the laser excited Na(3p) target is Pi-aligned as compared to a Sigma-alignment. Classical trajectory Monte Carlo (CTMC) calculations agree excellently with the experimental findings and yield predictions of strong positive polarizations for electron capture also from aligned Na(3p), indicating preferential capture to m(l) = 0 states. -->
Jazyk: English
ISSN: 0953-4075
Přístupová URL adresa: https://explore.openaire.eu/search/publication?articleId=narcis______::6e09a2f366d158af12cce76ddf4fa859
https://research.rug.nl/en/publications/fda2542b-80f2-4468-8b09-19f5b927cdd0
Rights: CLOSED
Přírůstkové číslo: edsair.narcis........6e09a2f366d158af12cce76ddf4fa859
Autor: Hoekstra, R, Morgenstern, R, Olson, RE, Schippers, Stefan
Přispěvatelé: Research unit Astroparticle Physics
Jazyk: angličtina
Rok vydání: 1996
Předmět:
Zdroj: Journal of Physics B-Atomic Molecular and Optical Physics, 29(13), 2819-2836. IOP PUBLISHING LTD
ISSN: 0953-4075
Popis: Absolute cross sections for C3+(6-->5) emission at 465.7 nm after collisions of C4+ ions with ground state Na(3s) and laser excited aligned Na(Sp) atoms are measured over the collision energy range of 3-7 keV amu(-1). For Na(3s) polarizations are observed by measuring the linear polarization of the emitted light. In these collisions the polarization is found to be 0.33 and almost independent of the collision energy. Cross sections for collisions with the Na(3p) target are up to five times larger than for collisions with Na(3s). Slightly larger cross sections are measured when the laser excited Na(3p) target is Pi-aligned as compared to a Sigma-alignment. Classical trajectory Monte Carlo (CTMC) calculations agree excellently with the experimental findings and yield predictions of strong positive polarizations for electron capture also from aligned Na(3p), indicating preferential capture to m(l) = 0 states.
Databáze: OpenAIRE
Externí odkaz: