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σ 1s σ 2s σ 2p σ 3s σ 3p σ 3d

H + + Ba(nl=1s) → H + + Ba + + e-

Table 1 (Theory)

E, MeV σ 1s , 10 -16 cm 2
KH69 BE78
0.07 — .5904E-15
0.10 — .5228E-14
0.15 — .4086E-13
0.20 — .1556E-12
0.30 — .9067E-12
0.50 .9893E-11 .7543E-11
0.70 .3563E-10 .2779E-10
1.0 .1373E-09 .1099E-09
1.5 .5064E-09 .4730E-09
2.0 .1457E-08 .1261E-08
3.0 .4734E-08 .4556E-08
5.0 .2001E-07 .1934E-07
7.0 .4453E-07 .4362E-07
10. .9356E-07 .9192E-07
15. .1824E-06 .1813E-06
20. .2629E-06 .2644E-06
30. .3936E-06 .3911E-06
50. .5183E-06 .5140E-06
70. .5493E-06 .5484E-06
100. .5363E-06 .5366E-06
150. .4749E-06 .4792E-06
200. .4173E-06 .4222E-06
300. .3340E-06 .3359E-06
500. .2302E-06 .2385E-06
700. .1790E-06 .1855E-06
1000. — .1410E-06
1500. — .1018E-06
2000. — .8037E-07
3000. — .5718E-07
5000. — .3712E-07

H + + Ba(nl=2s) → H + + Ba + + e-

Table 2 (Theory)

E, MeV σ 2s , 10 -16 cm 2
CH73 BE78
0.005 — .5959E-16
0.007 — .8460E-14
0.01 — .2055E-12
0.015 — .2538E-11
0.02 — .1110E-10
0.03 — .7044E-10
0.05 — .5491E-09
0.07 — .1883E-08
0.10 — .6067E-08
0.15 .2183E-07 .1892E-07
0.20 .3894E-07 .3619E-07
0.30 .6871E-07 .6803E-07
0.50 .1066E-06 .9803E-07
0.70 .2226E-06 .1948E-06
1.0 .7274E-06 .7297E-06
1.5 .2801E-05 .2700E-05
2.0 .5427E-05 .5390E-05
3.0 .1084E-04 .1080E-04
5.0 .1803E-04 .1806E-04
7.0 .2119E-04 .2124E-04
10. .2244E-04 .2239E-04
15. .2096E-04 .2109E-04
20. .1888E-04 .1906E-04
30. .1539E-04 .1557E-04
50. .1098E-04 .1129E-04
70. .8583E-05 .8930E-05
100. .6506E-05 .6861E-05
150. .4826E-05 .5012E-05
200. .3741E-05 .3982E-05
300. .2776E-05 .2857E-05
500. — .1860E-05
700. — .1399E-05
1000. — .1031E-05
1500. — .7259E-06
2000. — .5649E-06

H + + Ba(nl=2p) → H + + Ba + + e-

Table 3 (Theory)

E, MeV σ 2p , 10 -16 cm 2
CH73 BE78
0.005 — .7260E-17
0.007 — .9782E-15
0.01 — .2710E-13
0.015 — .4620E-12
0.02 — .2675E-11
0.03 — .2516E-10
0.05 — .3482E-09
0.07 — .1621E-08
0.10 — .7937E-08
0.15 .6988E-07 .4035E-07
0.20 .1551E-06 .1151E-06
0.30 .4687E-06 .4274E-06
0.50 .1810E-05 .1729E-05
0.70 .3847E-05 .3734E-05
1.0 .7712E-05 .7636E-05
1.5 .1544E-04 .1530E-04
2.0 .2348E-04 .2330E-04
3.0 .3805E-04 .3792E-04
5.0 .5846E-04 .5834E-04
7.0 .6951E-04 .6952E-04
10. .7689E-04 .7630E-04
15. .7636E-04 .7673E-04
20. .7228E-04 .7263E-04
30. .6187E-04 .6270E-04
50. .4606E-04 .4766E-04
70. .3640E-04 .3823E-04
100. .2770E-04 .2971E-04
150. .2055E-04 .2183E-04
200. .1593E-04 .1740E-04
300. .1180E-04 .1251E-04
500. — .8195E-05
700. — .6153E-05
1000. — .4552E-05
1500. — .3208E-05
2000. — .2999E-05

H + + Ba(nl=3s) → H + + Ba + + e-

Table 4 (Theory)

E, MeV σ 3s , 10 -16 cm 2
JO79
0.001 .2152E-10
0.002 .2893E-09
0.003 .1232E-08
0.005 .6718E-08
0.007 .1824E-07
0.01 .4513E-07
0.015 .9383E-07
0.02 .1252E-06
0.03 .1817E-06
0.05 .1037E-05
0.07 .2888E-05
0.10 .5244E-05
0.15 .7693E-05
0.20 .1373E-04
0.30 .4639E-04
0.50 .1496E-03
0.70 .2468E-03
1.0 .3472E-03
1.5 .4273E-03
2.0 .4562E-03
3.0 .4451E-03
5.0 .3779E-03
7.0 .3202E-03
10. .2613E-03
15. .1987E-03
20. .1628E-03
30. .1197E-03
50. .7983E-04
70. .6082E-04
100. .4582E-04
150. .3234E-04
200. .2540E-04
300. .1792E-04
500. .1153E-04

H + + Ba(nl=3p) → H + + Ba + + e-

Table 5 (Theory)

E, MeV σ 3p , 10 -16 cm 2
JO79
0.001 .9966E-11
0.002 .2644E-09
0.003 .1686E-08
0.005 .1529E-07
0.007 .5919E-07
0.01 .2171E-06
0.015 .7819E-06
0.02 .1666E-05
0.03 .3884E-05
0.05 .9080E-05
0.07 .1686E-04
0.10 .3590E-04
0.15 .8934E-04
0.20 .1656E-03
0.30 .3575E-03
0.50 .7553E-03
0.70 .1075E-02
1.0 .1397E-02
1.5 .1682E-02
2.0 .1780E-02
3.0 .1775E-02
5.0 .1567E-02
7.0 .1366E-02
10. .1132E-02
15. .8887E-03
20. .7368E-03
30. .5530E-03
50. .3770E-03
70. .2924E-03
100. .2204E-03
150. .1575E-03
200. .1245E-03
300. .8858E-04
500. .5750E-04

H + + Ba(nl=3d) → H + + Ba + + e-

Table 6 (Theory)

E, MeV σ 3d , 10 -16 cm 2
JO79
0.001 .5181E-12
0.002 .2850E-10
0.003 .2803E-09
0.005 .4586E-08
0.007 .2686E-07
0.01 .1580E-06
0.015 .1030E-05
0.02 .3504E-05
0.03 .1642E-04
0.05 .8204E-04
0.07 .1902E-03
0.10 .3721E-03
0.15 .7153E-03
0.20 .1037E-02
0.30 .1667E-02
0.50 .2835E-02
0.70 .3772E-02
1.0 .4703E-02
1.5 .5538E-02
2.0 .5817E-02
3.0 .5700E-02
5.0 .4889E-02
7.0 .4156E-02
10. .3363E-02
15. .2554E-02
20. .2061E-02
30. .1503E-02
50. .9966E-03
70. .7585E-03
100. .5628E-03
150. .3977E-03
200. .3113E-03
300. .2203E-03