TY - JOUR
T1 - Reevaluation of experiments and new theoretical calculations for electron-impact excitation of [Formula Presented]
AU - Janzen, P. H.
AU - Gardner, L. D.
AU - Reisenfeld, D. B.
AU - Savin, D. W.
AU - Kohl, J. L.
AU - Bartschat, K.
PY - 1999
Y1 - 1999
N2 - Experimental absolute-rate coefficients for electron-impact excitation of [Formula Presented] near threshold [D. W. Savin, L. D. Gardner, D. B. Reisenfeld, A. R. Young, and J. L. Kohl, Phys. Rev. A 51, 2162 (1995)] have been reanalyzed to include a more accurate determination of optical efficiency and revised radiometric uncertainties which reduce the total systematic uncertainty of the results. Also, new R matrix with pseudostates (RMPS) calculations for this transition near threshold are presented. Comparison of the RMPS results to those of simpler close-coupling calculations indicates the importance of accounting for target continuum effects. The reanalyzed results of Savin et al. are in excellent agreement with the RMPS calculations; comparisons are also made to other measurements of this excitation. Agreement with the RMPS results is better for fluorescence technique measurements than for electron-energy-loss measurements.
AB - Experimental absolute-rate coefficients for electron-impact excitation of [Formula Presented] near threshold [D. W. Savin, L. D. Gardner, D. B. Reisenfeld, A. R. Young, and J. L. Kohl, Phys. Rev. A 51, 2162 (1995)] have been reanalyzed to include a more accurate determination of optical efficiency and revised radiometric uncertainties which reduce the total systematic uncertainty of the results. Also, new R matrix with pseudostates (RMPS) calculations for this transition near threshold are presented. Comparison of the RMPS results to those of simpler close-coupling calculations indicates the importance of accounting for target continuum effects. The reanalyzed results of Savin et al. are in excellent agreement with the RMPS calculations; comparisons are also made to other measurements of this excitation. Agreement with the RMPS results is better for fluorescence technique measurements than for electron-energy-loss measurements.
UR - http://www.scopus.com/inward/record.url?scp=0001764257&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.59.4821
DO - 10.1103/PhysRevA.59.4821
M3 - Article
AN - SCOPUS:0001764257
SN - 1050-2947
VL - 59
SP - 4821
EP - 4824
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 6
ER -