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Table 2

Comparison of energy levels from the present work and other experimental or theoretical studies with the NIST ASD (deviations in cm−1) for Ce IV.

Config. Term J NIST 1 GRASP2018 HULLAC 2 3
5p64f 2Fo 7/2 2253 2252.50 2053/ 200 2081/ 172 2214/ 39 2187/ 66
5p65d 2D 3/2 49 737 49 737.30 47 653/ 2084 50 098/ −361 47 563/ 2174 47 535/ 2202
5p65d 2D 5/2 52 226 52 226.33 50 163/ 2063 52 526/ −300 50 146/ 2080 49 966/ 2260
5p66s 2S 1/2 86 602 86 602.10 86 031/ 571 93 253/ −6651 84 578/ 2024 84 006/ 2596
5p66p 2Po 1/2 122 585 122 585.29 121 809/ 776 129 246/ −6661 120 481/ 2104 120 014/ 2571
5p66p 2Po 3/2 127 292 127 292.24 126 396/ 896 133 570/ −6278 125 136/ 2156 124 701/ 2591
5p66d 2D 5/2 177 198 177 199.23 176 236/ 962 183 448/ −6250 175 072/ 2126
5p66d 2D 3/2 178 913 178 913.57 175 495/ 3418 183 463/ −4550 175 792/ 3121
5p67s 2S 1/2 183 502 183 501.73 182 938/ 564 188 579/ −5077 181 176/ 2326
5p65f 2Fo 5/2 184 545 184 543.00 183 913/ 632 192 660/ −8115
5p65f 2Fo 7/2 184 746 184 744.88 184 167/ 579 192 631/ −7885
5p67d 2D 3/2 221 661 221 661.70 221 463/ 198 228 226/ −6565
5p67d 2D 5/2 221 838 222 579.25 221 952/ −114 228 620/ −6782
5p68s 2S 1/2 225 128 225 137/ −9 231 118/ −5990
5p65g 2G 7/2,9/2 225 625 226 771.66 225 466/ 159 231 349/ −5724

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