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00925njm 22002777a 4500 dc Hamilton, K. R. author Zatsarinny, O. author Bartschat, K. author Rabasovic, M. S. author Sevic, D. author Marinkovic, B. P. author Dujko, S. author Atic, J. author Fursa, D. V. author Bray, I. author McEachran, R. P. author Blanco Ramos, Francisco author García, G. author Stokes, P. W. author White, R. D. author Brunger, M. J. author 2020-08-03 We present angle-integrated and angle-differential cross sections for electron-impact excitation of the (5s(2)5p) P-2(1/2) -> (5s(2)6s) S-2(1/2) 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. 2469-9926 10.1103/PhysRevA.102.022801 https://hdl.handle.net/20.500.14352/6549 https://doi.org/10.1103/PhysRevA.102.022801 https://journals.aps.org/ Electron-impact excitation of the (5s(2)5p) P-2(1/2) -> (5s(2)6s) S-2(1/2) transition in indium: Theory and experiment