Photoionization of neutral potassium K I is investigated in the framework of the screening constant per unit nuclear charge (SCUNC) method. Transition energies and wavelengths belonging to 4p(2P1/2) → nd 2D3/2 and 4p(2P3/2) → nd 2D3/2,5/2 Rydberg transitions are reported. Accurate transition energies and wavelengths originating from 4p(2P1/2,3/2) levels of K I are tabulated for 20 ≤ n ≤ 100. The SCUNC wavelengths are believed to be the fi rst calculations that agree excellently with the existing experimental measurements up to n = 70 using linearly polarized laser light. The maximum shift in wavelengths relative to the experimental data is at 0.03 nm up to n = 70. New wavelengths are tabulated for n = 71–100 along with new transition energies for n = 20–100.
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Abstract of article is published in Zhurnal Prikladnoi Spektroskopii, Vol. 90, No. 4, p. 664, July–August, 2023.
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Sakho, I. Precise Wavelengths of 4P(2P1/2) → nd 2D3/2 AND 4P(2P3/2) → nd 2D3/2,5/2 Rydberg Transitions in Neutral Potassium Calculated Via the Screening Constant Per Unit Nuclear Charge Method. J Appl Spectrosc 90, 955–964 (2023). https://doi.org/10.1007/s10812-023-01618-3
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DOI: https://doi.org/10.1007/s10812-023-01618-3