Single and double K-shell resonant photoionization and Auger decay of 1s → 2p excited states of O+–O4+

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Table 1

Theoretical and experimental energies (Kramida et al. 2015) (in eV) for the terms of target states of O²⁺ and O³⁺ relative to the ground state in the calculations of PI of O⁺ and O²⁺.

	O²⁺			O³⁺

No.	State	This work	Expt.	State	This work	Expt.

1	1s²2s²2p²	0.0	0.0	1s²2s²2p 2P◦	0.0	0.0
2	1s²2s²2p²	2.5320	2.5136	1s²2s2p²	8.7951	8.8824
3	1s²2s²2p²	5.4790	5.3543	1s²2s2p²	15.897	15.739
4	1s²2s2p³ 5S◦	7.3185	7.4793	1s²2s2p²	20.724	20.379
5	1s²2s2p³ 3D◦	14.885	14.883	1s²2s2p²	22.689	22.397
6	1s²2s2p³ 3P◦	17.632	17.653	1s²2p³ 4S◦	28.872	28.707
7	1s²2s2p³	23.379	23.192	1s²2p³ 2D◦	31.931	31.637
8	1s²2s2p³	24.588	24.436	1s²2p³ 2P◦	36.319	35.834
9	1s²2s2p³ 1P◦	26.353	26.094	1s²2s²3s	44.140	44.339
10	1s²2s²2p3s 3P◦	33.211	33.167	1s²2s²3p 2P◦	48.184	48.381
11	1s²2s²2p3s 1P◦	33.912	33.858	1s²2s²3d	51.883	52.017
12	1s²2p⁴	35.357	35.195	1s²2s2p(³P°)3s 4P◦	54.285	52.440
13	1s²2s²2p3p	36.217	36.074	1s²2s2p(³P°)3s 2P◦	56.188	56.163
14	1s²2s²2p3p	36.605	36.461	1s²2s2p(³P°)3p 2P	57.862	57.939
15	1s²2s²2p3p	37.009	36.893	1s²2s2p(³P°)3p	58.064	58.097
16	1s²2p⁴	37.228	36.984	1s²2s2p(³P°)3p	58.798	58.828
17	1s²2s²2p3p	37.314	37.242	1s²2s2p(³P°)3p	59.278	59.387
18	1s²2s²2p3p	38.120	38.012	1s²2s2p(³P°)3p	59.907	59.862
19	1s²2s²2p3p	39.051	38.907	1s²2s2p(³P°)3p	61.269	61.111
20	1s²2p⁴	42.948	42.565	1s²2s2p(³P°)3d	63.848	63.761
21	1s2s²2p³ 5S◦	526.00		1s²2s2p(¹P°)3s 2P◦	64.444	64.311
22	1s2s²2p³ 3D◦	537.96		1s²2s2p(¹P°)3p	68.229	67.862
23	1s2s²2p³ 3S◦	538.87		1s²2s2p(¹P°)3p	68.355	68.171
24	1s2s²2p³ 3P◦	540.17		1s²2s2p(¹P°)3p	68.745	68.745
25	1s2s²2p³ 1D◦	541.48		1s2s²2p²	537.38
26	1s2s²2p³ 1P◦	543.94		1s2s²2p²	542.73
27	1s2s(³S)2p⁴	545.49		1s2s²2p²	543.60
28	1s2s(³S)2p⁴	553.75		1s2s²2p²	545.69
29	1s2s(³S)2p⁴	554.40
30	1s2s(³S)2p⁴	564.91

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