Table 1
Target levels of Si xi and their threshold energies (in eV). The complete table is available at the CDS.
| Index | Configuration | J π | FAC1 | FAC2 | HFR1 | NIST | |
|
|
|||||||
| 1 |
|
0e | 0.0000 | 0.0000 | 0.0000 | 0.0000 | |
| 2 |
|
0o | 21.3327 | 21.2349 | 21.0968 | 21.0528 | |
| 3 |
|
1o | 21.6157 | 21.5185 | 21.4031 | 21.3431 | |
| 4 |
|
2o | 22.2423 | 22.1472 | 22.0448 | 21.9846 | |
| 5 |
|
1o | 42.6349 | 41.8458 | 41.9400 | 40.8750 | |
| 6 |
|
0e | 55.7574 | 55.6194 | 55.1390 | 55.0081 | |
| 7 |
|
1e | 56.0952 | 55.9604 | 55.4830 | 55.3582 | |
| 8 |
|
2e | 56.6373 | 56.5043 | 56.0737 | 55.9125 | |
| 9 |
|
2e | 63.2840 | 62.6257 | 62.2403 | 61.3971 | |
| 10 |
|
0e | 77.9901 | 77.3522 | 76.7322 | 75.4764 | |
| 11 |
|
0o | 1818.1021 | 1816.7572 | 1817.9239 | ||
| 12 |
|
1o | 1818.2944 | 1816.8417 | 1818.2763 | ||
| 13 |
|
2o | 1819.0477 | 1817.6862 | 1819.0625 | ||
| 14 |
|
1e | 1822.9172 | 1821.7062 | 1822.5031 | ||
| 15 | 1s1 / 22s1 / 22p1 / 22p3 / 2 | 2e | 1823.2833 | 1822.0689 | 1822.9144 | ||
| 16 |
|
3e | 1823.7399 | 1822.5149 | 1823.5003 | ||
| 17 |
|
1o | 1828.4606 | 1827.5392 | 1828.8896 | 1828.6100 | |
| •18 | 1s1 / 22s1 / 22p1 / 22p3 / 2 | 3e | 1844.7829 | 1844.1929 | 1845.1206 | 1844.8200 | |
| •19 | 1s1 / 22s1 / 22p1 / 22p3 / 2 | 2e | 1844.9714 | 1844.2053 | 1845.1918 | 1844.5600 | |
| •20 | 1s1 / 22s1 / 22p1 / 22p3 / 2 | 1e | 1845.2521 | 1844.1961 | 1845.1263 | 1844.6500 | |
| •21 | 1s1 / 22s1 / 22p1 / 22p3 / 2 | 0e | 1845.3862 | 1844.2107 | 1845.3437 | 1844.4500 | |
| 22 |
|
1e | 1845.7068 | 1844.7107 | 1845.6215 | 1845.2300 | |
| 23 |
|
2e | 1845.9554 | 1845.2402 | 1846.1785 | 1845.8100 | |
| 24 |
|
1e | 1855.8317 | 1855.2865 | 1856.1045 | ||
| •25 | 1s1 / 22s1 / 22p1 / 22p3 / 2 | 2e | 1859.3489 | 1858.4128 | 1859.6729 | ||
| •26 |
|
2o | 1859.4064 | 1858.6252 | 1858.7365 | 1858.5600 | |
| 27 | 1s1 / 22s1 / 22p1 / 22p3 / 2 | 0e | 1860.5086 | 1859.0153 | 1860.1826 | ||
| 28 | 1s1 / 22s1 / 22p1 / 22p3 / 2 | 1e | 1860.8798 | 1859.3893 | 1860.5703 | ||
| 29 |
|
2e | 1861.3770 | 1859.9040 | 1861.2197 | 1859.6600 | |
| 30 | 1s1 / 22s1 / 22p1 / 22p3 / 2 | 1e | 1869.0812 | 1867.9143 | 1869.0402 | 1867.4000 | |
| 31 |
|
0e | 1869.9258 | 1869.6685 | 1870.6435 | ||
| •32 |
|
3o | 1874.3605 | 1873.3319 | 1873.6642 | ||
| 33 |
|
2o | 1874.5742 | 1873.5519 | 1873.6241 | ||
| •34 |
|
1o | 1874.5947 | 1873.5715 | 1873.6184 | ||
| 35 |
|
1o | 1878.6887 | 1878.3633 | 1878.2305 | ||
| 36 |
|
2o | 1883.8960 | 1883.1171 | 1883.1831 | 1881.6200 | |
| •37 |
|
1o | 1884.8907 | 1884.1622 | 1884.2532 | ||
| •38 |
|
0o | 1884.9585 | 1884.2338 | 1884.1787 | ||
| 39 |
|
2o | 1885.1943 | 1884.4478 | 1884.5571 | 1883.2000 | |
| 40 |
|
1o | 1894.5676 | 1894.0804 | 1894.0634 | 1892.2300 | |
Notes. FAC1: level energies computed by 40 levels involved with FAC code. FAC2: level energies computed by 680 levels involved with FAC code. HFR1: level energies computed by 40 levels involved with HFR code from Palmeri et al. (2008). NIST: level energies compiled in NIST database 1. •: levels with orderings changed by inclusion Breit effects.
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