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σ 1s σ 2s σ 2p σ 3s σ 3p σ 3p

H + + Eu(nl=1s) → H + + Eu + + e-

Table 1 (Theory)

E, MeV σ 1s , 10 -16 cm 2
KH69 BE78
0.10 — .6486E-15
0.15 — .6257E-14
0.20 — .2598E-13
0.30 — .1639E-12
0.50 .1997E-11 .1458E-11
0.70 .7218E-11 .5620E-11
1.0 .2759E-10 .2312E-10
1.5 .1167E-09 .1054E-09
2.0 .3241E-09 .2948E-09
3.0 .1218E-08 .1151E-08
5.0 .5632E-08 .5509E-08
7.0 .1417E-07 .1361E-07
10. .3225E-07 .3185E-07
15. .7132E-07 .7094E-07
20. .1129E-06 .1125E-06
30. .1867E-06 .1860E-06
50. .2788E-06 .2768E-06
70. .3182E-06 .3164E-06
100. .3304E-06 .3289E-06
150. .3094E-06 .3101E-06
200. .2797E-06 .2812E-06
300. .2272E-06 .2305E-06
500. .1628E-06 .1672E-06
700. .1272E-06 .1313E-06
1000. — .1004E-06
1500. — .7272E-07
2000. — .5749E-07
3000. — .4098E-07
5000. — .2661E-07

H + + Eu(nl=2s) → H + + Eu + + e-

Table 2 (Theory)

E, MeV σ 2s , 10 -16 cm 2
CH73 BE78
0.007 — .7682E-16
0.01 — .8891E-14
0.015 — .2089E-12
0.02 — .1157E-11
0.03 — .8818E-11
0.05 — .8582E-10
0.07 — .3194E-09
0.10 — .1175E-08
0.15 — .4315E-08
0.20 .1155E-07 .9643E-08
0.30 .2527E-07 .2394E-07
0.50 .4598E-07 .4594E-07
0.70 .6261E-07 .5693E-07
1.0 .1589E-06 .1260E-06
1.5 .6052E-06 .5662E-06
2.0 .1492E-05 .1418E-05
3.0 .3719E-05 .3692E-05
5.0 .7903E-05 .7800E-05
7.0 .1048E-04 .1036E-04
10. .1195E-04 .1208E-04
15. .1238E-04 .1247E-04
20. .1169E-04 .1182E-04
30. .9972E-05 .1015E-04
50. .7409E-05 .7665E-05
70. .5843E-05 .6144E-05
100. .4479E-05 .4778E-05
150. .3265E-05 .3520E-05
200. .2655E-05 .2811E-05
300. .1927E-05 .2026E-05
500. .1240E-05 .1333E-05
700. — .1001E-05
1000. — .7401E-06
1500. — .5213E-06
2000. — .4060E-06

H + + Eu(nl=2p) → H + + Eu + + e-

Table 3 (Theory)

E, MeV σ 2p , 10 -16 cm 2
CH73 BE78
0.007 — .6623E-17
0.01 — .1096E-14
0.015 — .3089E-13
0.02 — .2197E-12
0.03 — .2473E-11
0.05 — .4069E-10
0.07 — .2160E-09
0.10 — .1135E-08
0.15 — .6473E-08
0.20 .3643E-07 .2042E-07
0.30 .9833E-07 .8839E-07
0.50 .4708E-06 .4349E-06
0.70 .1110E-05 .1047E-05
1.0 .2460E-05 .2360E-05
1.5 .5301E-05 .5211E-05
2.0 .8587E-05 .8494E-05
3.0 .1529E-04 .1525E-04
5.0 .2668E-04 .2651E-04
7.0 .3432E-04 .3411E-04
10. .3999E-04 .4042E-04
15. .4367E-04 .4381E-04
20. .4304E-04 .4335E-04
30. .3906E-04 .3935E-04
50. .3073E-04 .3124E-04
70. .2472E-04 .2553E-04
100. .1910E-04 .2003E-04
150. .1394E-04 .1482E-04
200. .1133E-04 .1185E-04
300. .8203E-05 .8543E-05
500. .5258E-05 .5609E-05
700. — .4217E-05
1000. — .3110E-05
1500. — .2189E-05
2000. — .1704E-05

H + + Eu(nl=3s) → H + + Eu + + e-

Table 4 (Theory)

E, MeV σ 3s , 10 -16 cm 2
JO79
0.002 .3931E-10
0.003 .1762E-09
0.005 .1070E-08
0.007 .3238E-08
0.01 .9416E-08
0.015 .2616E-07
0.02 .4467E-07
0.03 .6901E-07
0.05 .1405E-06
0.07 .4969E-06
0.10 .1513E-05
0.15 .2934E-05
0.20 .3791E-05
0.30 .8448E-05
0.50 .3770E-04
0.70 .7778E-04
1.0 .1325E-03
1.5 .1914E-03
2.0 .2219E-03
3.0 .2392E-03
5.0 .2215E-03
7.0 .1954E-03
10. .1633E-03
15. .1287E-03
20. .1055E-03
30. .7932E-04
50. .5343E-04
70. .4077E-04
100. .3052E-04
150. .2208E-04
200. .1715E-04
300. .1216E-04
500. .7868E-05
700. .5866E-05

H + + Eu(nl=3p) → H + + Eu + + e-

Table 5 (Theory)

E, MeV σ 3p , 10 -16 cm 2
JO79
0.001 .7093E-12
0.002 .2373E-10
0.003 .1589E-09
0.005 .1605E-08
0.007 .6822E-08
0.01 .2883E-07
0.015 .1261E-06
0.02 .3183E-06
0.03 .9423E-06
0.05 .2599E-05
0.07 .4509E-05
0.10 .8658E-05
0.15 .2054E-04
0.20 .3957E-04
0.30 .9503E-04
0.50 .2412E-03
0.70 .3875E-03
1.0 .5655E-03
1.5 .7536E-03
2.0 .8585E-03
3.0 .9268E-03
5.0 .8834E-03
7.0 .7963E-03
10. .6820E-03
15. .5436E-03
20. .4559E-03
30. .3471E-03
50. .2387E-03
70. .1843E-03
100. .1403E-03
150. .1015E-03
200. .7964E-04
300. .5682E-04
500. .3701E-04
700. .2771E-04

H + + Eu(nl=3d) → H + + Eu + + e-

Table 6 (Theory)

E, MeV σ 3d , 10 -16 cm 2
JO79
0.001 .2677E-13
0.002 .1530E-11
0.003 .1588E-10
0.005 .2780E-09
0.007 .1742E-08
0.01 .1143E-07
0.015 .8522E-07
0.02 .3265E-06
0.03 .1862E-05
0.05 .1234E-04
0.07 .3482E-04
0.10 .8673E-04
0.15 .1843E-03
0.20 .2998E-03
0.30 .5118E-03
0.50 .9211E-03
0.70 .1301E-02
1.0 .1771E-02
1.5 .2277E-02
2.0 .2576E-02
3.0 .2769E-02
5.0 .2630E-02
7.0 .2354E-02
10. .1990E-02
15. .1560E-02
20. .1281E-02
30. .9525E-03
50. .6375E-03
70. .4856E-03
100. .3646E-03
150. .2588E-03
200. .2020E-03
300. .1431E-03
500. .9197E-04