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Table 2
Energies of the lowest 50 levels in Fe viii.
| i | Conf. | Mixing | Lev. | E exp | E TEC | E t | E TZ11 | E D09 | E G00 | |
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| 1 | 3s2 3p6 3d | (96%) | 2D3/2 | 0 | 0 | 0 | 0 | 0 | 0 | |
| 2 | 3s2 3p6 3d | (96%) | 2D5/2 | 1836 | 2080 (−244) | 2080 (−244) | 2016 (−180) | 1936 (−100) | 1935 (−99) | |
| 3 | 3s2 3p5 3d2 | (78%) +34(19%) | 4D1/2 | 391 108 | 391 072 (36) | 397 165 (−6057) | 388 597 (2511) | 387 534 (3574) | 385 117 (5991) | |
| 4 | 3s2 3p5 3d2 | (75%) +32(21%) | 4D3/2 | 391 988 | 391 961 (27) | 398 035 (−6047) | 389 485 (2503) | 388 427 (3561) | 386 029 (5959) | |
| 5 | 3s2 3p5 3d2 | (71%) +30(24%) | 4D5/2 | 393 455 | 393 442 (13) | 399 508 (−6053) | 391 098 (2357) | 389 926 (3529) | 387 571 (5884) | |
| 6 | 3s2 3p5 3d2 | (65%) +29(29%) | 4D7/2 | 395 605 | 395 602 (3) | 401 711 (−6106) | 393 356 (2249) | 392 113 (3492) | 389 849 (5756) | |
| 7 | 3s2 3p5 3d2 | (97%) | 4G11/2 | − | 412089 | 418 089 | 414 246 | 408 876 | 408 287 | |
| 8 | 3s2 3p5 3d2 | (91%) | 4G9/2 | − | 413 693 | 419 793 | 415 778 | 410 578 | 409 895 | |
| 9 | 3s2 3p5 3d2 | (87%) +19(6%) | 4G7/2 | − | 415672 | 421904 | 417553 | 412646 | 411900 | |
| 10 | 3s2 3p5 3d2 | (93%) | 4P5/2 | − | 416 767 | 422 868 | 413 520 | 414 123 | 412 945 | |
| 11 | 3s2 3p5 3d2 | (78%) +20(6%) | 4G5/2 | − | 417 680 | 424 214 | 419 488 | 414 876 | 414 070 | |
| 12 | 3s2 3p5 3d2 | (94%) | 4P3/2 | − | 419 777 | 425 960 | 416 585 | 417 235 | 415 964 | |
| 13 | 3s2 3p6 4s | (98%) | 2S1/2 | 421 424 | 421 454 (−30) | 467 053 (−45 629) | 421 424 (0) | 463 431 (−42 007) | 433 540 (−12 116) | |
| 14 | 3s2 3p5 3d2 | (95%) | 4P1/2 | − | 422 097 | 428 233 | 418 763 | 419 511 | 418 173 | |
| 15 | 3s2 3p5 3d2 | (40%) +21(36%) +50(12%) | 2D3/2 | − | 426 226 | 435 497 | 427 312 | 425 216 | 424038 | |
| 16 | 3s2 3p5 3d2 | (60%) +11(5%) +20(11%) +49(16%) | 2D5/2 | − | 426 233 | 441 490 | 433 523 | 431 301 | 430228 | |
| 17 | 3s2 3p5 3d2 | (90%) | 4F9/2 | − | 430 687 | 437 805 | 429 893 | 427 210 | 425 897 | |
| 18 | 3s2 3p5 3d2 | (48%) +11(7%) +45(37%) | 2F5/2 | 431 250 | 430 978 (272) | 443 455 (−12 205) | 432 555 (−1305) | 431 709 (−459) | 430 942 (308) | |
| 19 | 3s2 3p5 3d2 | (71%) +9(7%) +22(7%) +46(6%) | 4F7/2 | − | 431 108 | 438 581 | 430 619 | 428 071 | 426 733 | |
| 20 | 3s2 3p5 3d2 | (76%) +16(11%) | 4F5/2 | − | 432 942 | 436 537 | 428 764 | 426 355 | 425 317 | |
| 21 | 3s2 3p5 3d2 | (58%) +15(22%) +24(7%) | 4F3/2 | − | 433 432 | 443 248 | 434 006 | 433 260 | 432 013 | |
| 22 | 3s2 3p5 3d2 | (39%) +19(15%) +46(32%) | 2F7/2 | 434 555 | 434 715 (−160) | 447 138 (−12 583) | 435 862 (−1307) | 43 5407 (−852) | 434 555 (0) | |
| 23 | 3s2 3p5 3d2 | (66%) +47(21%) +44(7%) | 2P1/2 | 439 894 | 439 952 (−58) | 452 030 (−12 136) | 438 281 (1613) | 442 557 (−2663) | 440 344 (−450) | |
| 24 | 3s2 3p5 3d2 | (47%) +15(11%) +48(19%) +41(10%) | 2P3/2 | 445 540 | 445 306 (234) | 457 317 (−11 777) | 444 492 (1048) | 447 958 (−2418) | 445 806 (−266) | |
| 25 | 3s2 3p5 3d2 | (97%) | 2H11/2 | − | 446 351 | 456 347 | 450 380 | 446 491 | 446 481 | |
| 26 | 3s2 3p5 3d2 | (80%) +27(9%) | 2F7/2 | 447 658 | 447 491 (167) | 457 325 (−9667) | 448 928 (−1270) | 447 330 (328) | 448 606 (−948) | |
| 27 | 3s2 3p5 3d2 | (74%) +40(5%) +26(8%) | 2G7/2 | 451 901 | 451 968 (−67) | 462 679 (−10 778) | 453 283 (−1382) | 452 090 (−189) | 451 232 (669) | |
| 28 | 3s2 3p5 3d2 | (60%) +39(10%) +31(24%) | 2H9/2 | − | 454 598 | 464 967 | 459 736 | 454 641 | 456 493 | |
| 29 | 3s2 3p5 3d2 | (60%) +6(30%) | 4D7/2 | − | 456 679 | 472 362 | 460 623 | 461 568 | 461 691 | |
| 30 | 3s2 3p5 3d2 | (64%) +5(23%) | 4D5/2 | − | 457 423 | 473 462 | 461 752 | 462 827 | 463 050 | |
| 31 | 3s2 3p5 3d2 | (58%) +28(33%) | 2G9/2 | − | 457 432 | 467 938 | 456 993 | 457 381 | 454 098 | |
| 32 | 3s2 3p5 3d2 | (71%) +4(20%) | 4D3/2 | − | 459 387 | 475 304 | 463 607 | 464 781 | 464 977 | |
| 33 | 3s2 3p5 3d2 | (87%) | 2F5/2 | 459 367 | 459 438 (−71) | 469 028 (−9661) | 460 058 (−691) | 458 826 (541) | 460462 (−1095) | |
| 34 | 3s2 3p5 3d2 | (77%) +3(18%) | 4D1/2 | − | 461 247 | 477 149 | 465 543 | 466 698 | 466 839 | |
| 35 | 3s2 3p5 3d2 | (82%) +50(5%) +15(5%) | 2D3/2 | − | 478 353 | 494 701 | 479 577 | 483 165 | 483 828 | |
| 36 | 3s2 3p5 3d2 | (81%) +49(6%) | 2D5/2 | 482 802 | 482 563 (239) | 498 838 (−16 036) | 483 529 (−727) | 487 085 (−4283) | 487 784 (−4982) | |
| 37 | 3s2 3p5 3d2 | (96%) | 4S3/2 | 484 639 | 484 645 (−6) | 501 249 (−16 610) | 483 852 (787) | 488 226 (−3587) | 490 366 (−5727) | |
| 38 | 3s2 3p5 3d2 | (96%) | 2S1/2 | − | 484 915 | 500 829 | 481 351 | 489 483 | 490 369 | |
| 39 | 3s2 3p5 3d2 | (84%) +31(9%) | 2G9/2 | − | 489 917 | 505 815 | 491 756 | 493 087 | 493 551 | |
| 40 | 3s2 3p5 3d2 | (89%) +27(6%) | 2G7/2 | 490 346 | 490 336 (10) | 506 410 (−16 064) | 492 320 (−1974) | 493 699 (−3353) | 494 249 (−3903) | |
| 41 | 3s2 3p5 3d2 | (66%) +24(17%) +43(c4 13%) | 2P3/2 | 508 518 | 508 699 (−181) | 522 418 (−13 900) | 510 065 (−1547) | 515 107 (−6589) | 517 324 (−8806) | |
| 42 | 3s2 3p6 4p | (88%) +44(c2 5%) | 2P1/2 | 510 277 | 510 995 (−718) | 524 758 (−14 481) | 510 468 (−191) | 517 523 (−7246) | 518 453 (−8176) | |
| 43 | 3s2 3p6 4p | (80%) +41(c2 10%) | 2P3/2 | 515 550 | 515 548 (2) | 529 426 (−13 876) | 515 952 (−402) | 522 569 (−7019) | 524 422 (−8872) | |
| 44 | 3s2 3p5 3d2 | (72%) +23(14%) +42(c4 5%) | 2P1/2 | 520 822 | 520 487 (335) | 534 325 (−13 503) | 522 727 (−1905) | 526 846 (−6024) | 529 826 (−9004) | |
| 45 | 3s2 3p5 3d2 | (51%) +18(42%) | 2F5/2 | 5359 10 | 535 929 (−19) | 553 606 (−17 696) | 54 7973 (−12 063) | 537 800 (−1890) | 557 894 (−21 984) | |
| 46 | 3s2 3p5 3d2 | (48%) +22(45%) | 2F7/2 | 541 755 | 541 773 (−18) | 559 447 (−17 692) | 553 618 (−11 863) | 543 354 (−1599) | 563 459 (−21 704) | |
| 47 | 3s2 3p5 3d2 | (69%) +23(13%) +44(11%) | 2P1/2 | 591 964 | 591 955 (9) | 608 545 (−16 581) | 602 173 (−10 209) | 593 447 (−1483) | 615 643 (−23 679) | |
| 48 | 3s2 3p5 3d2 | (70%) +24(15%) +41(8%) | 2P3/2 | 595 152 | 595 394 (−242) | 612 003 (-16 851) | 605 399 (−10 247) | 596 645 (−1493) | 618 627 (−23 475) | |
| 49 | 3s2 3p5 3d2 | (68%) +16(16%) +36(10%) | 2D5/2 | 596 465 | 596 518 (−53) | 611 515 (−15 050) | 609 513 (−13 048) | 600 673 (−4208) | 627 983 (−31 518) | |
| 50 | 3s2 3p5 3d2 | (69%) +15(16%) +35(9%) | 2D3/2 | 597 065 | 596 768 (297) | 611 742 (−14 677) | 609 674 (−12 609) | 600 960 (−3895) | 628 145 (−31 080) | |
Notes. The columns provide: the experimental level energies Eexp (from Del Zanna 2009b, in cm-1), those obtained from the present target, with (ETEC) and without TEC (Et), those of Tayal & Zatsarinny (2011; ETZ11), of the benchmark structure calculation of Del Zanna (2009b; ED09), and those of the Griffin et al. (2000) scattering target (EG00). Values in parentheses indicate differences to our observed energies.
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