Electron-impact excitation of the (5s²5p) ²P½ → (5s²6s) ²S½ transition in indium: theory and experiment

Hamilton, K.R., Zatsarinny, O., Bartschat, K., Rabasovic, M.S, Sevic, D., Marinkovic, B.P., Dujko, S., Atic, J., Fursa, D.V., Bray, I., McEachran, R.P., Blanco, F., Garcia, G., Stokes, P.W., White, R.D., and Brunger, M.J. (2020) Electron-impact excitation of the (5s²5p) ²P½ → (5s²6s) ²S½ transition in indium: theory and experiment. Physical Review A, 102 (2). 022801.

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Abstract

We present angle-integrated and angle-differential cross sections for electron-impact excitation of the (5s²5p) ²P½ → (5s²6s) ²S½ transition in atomic indium. Experimental data for six incident electron energies between 10 and 100 eV are compared with predictions from semirelativistic and fully relativistic B-spline R-matrix calculations, as well as a fully relativistic convergent close-coupling model. Agreement between our measured and calculated data is, with a few exceptions, found to be typically very good. Additionally, the agreement between the present theoretical predictions is generally excellent, with the remaining small deviations being associated with the slightly different, although still very accurate, descriptions of the target structure. Agreement between the present results and an earlier relativistic distorted-wave computation [T. Das, R. Srivastava, and A. D. Stauffer, Phys. Lett. A 375, 568 (2011)] was, however, found to be marginal, particularly at 10 and 20 eV.

Item ID: 64170
Item Type: Article (Research - C1)
ISSN: 2469-9934
Copyright Information: ©2020 American Physical Society.
Funders: U.S. National Science Foundation (NSF), Extreme Science and Engineering Discovery Environment (XSEDE), Australian Research Council (ARC), Australian Government, Government of Western Australia, Spanish Ministry (MICIU), Spanish Research Council (CSIC), Ministry of Education, Science and Technological Development of the Republic of Serbia (RS), Institute of Physics (Belgrade)
Projects and Grants: NSF Grant OAC1834740, NSF Grant PHY-1803844, XSEDE Grant PHY-090031, MICIU Project No. PID2019-104727RB-C21, CSIC Project No. LINKA20085, ARC Grant DP180101655
Date Deposited: 26 Aug 2020 07:35
FoR Codes: 51 PHYSICAL SCIENCES > 5106 Nuclear and plasma physics > 510602 Plasma physics; fusion plasmas; electrical discharges @ 100%
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