Absolute cross sections for near-threshold electron-impact excitation of the 2s{sup 2}S{r_arrow}2p{sup 2}P transition in C{sup 3+}

Journal Article · Thu Jan 01 04:00:00 EST 1998 · Physical Review A

DOI:https://doi.org/10.1103/PhysRevA.57.278· OSTI ID:565843

Bannister, M E ^[1]; Chung, Y; Djuric, N; Wallbank, B; Woitke, O; Zhou, S; Dunn, G H ^[2]; Smith, A C ^[3]

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1. Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6372 (United States)
2. JILA, University of Colorado and National Institute of Standards and Technology, Boulder, Colorado 80309-0440 (United States)
3. University College London, London WC1E6BT (United Kingdom)

Absolute total cross sections for electron-impact excitation of the 2s{sup 2}S{r_arrow}2p{sup 2}P transition in C{sup 3+} were measured from 7.35 eV to 8.45 eV using the merged electron-ion-beams energy-loss technique. The results settle the discrepancy between two previous experiments using the crossed-beams fluorescence method, being in very good agreement with the older results [P. O. Taylor, D. Gregory, G. H. Dunn, R. A. Phaneuf, and D. H. Crandall, Phys. Rev. Lett. {bold 39}, 1256 (1977)] but less so with the more recent ones [D. W. Savin, L. D. Gardner, D. B. Reisenfeld, A. R. Young, and J. L. Kohl, Phys. Rev. A {bold 51}, 2162 (1995)]. The present measurements are also in good agreement with unitarized Coulomb-Born and close-coupling calculations. {copyright} {ital 1998} {ital The American Physical Society}

• OSTI ID: 565843
• Journal Information: Physical Review A, Journal Name: Physical Review A Journal Issue: 1 Vol. 57; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CARBON IONS
CATIONS
ELECTRON-ION COLLISIONS
EV RANGE 01-10
EXCITATION
EXCITED STATES
FLUORESCENCE
P STATES
S STATES
THRESHOLD ENERGY