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σ 1s σ 2s σ 2p σ 3s σ 3p σ 3d

H + + Ra(nl=1s) → H + + Ra + + e-

Table 1 (Theory)

E, MeV σ 1s , 10 -16 cm 2
BE78
0.20 .7015E-16
0.30 .7248E-15
0.50 .8865E-14
0.70 .4009E-13
1.0 .1870E-12
1.5 .9866E-12
2.0 .3076E-11
3.0 .1438E-10
5.0 .9072E-10
7.0 .2823E-09
10. .8736E-09
15. .2757E-08
20. .5664E-08
30. .1347E-07
50. .3091E-07
70. .4555E-07
100. .6020E-07
150. .7134E-07
200. .7389E-07
300. .7009E-07
500. .5728E-07
700. .4725E-07
1000. .3727E-07
1500. .2762E-07
2000. .2204E-07
3000. .1583E-07
5000. .1031E-07
7000. .7725E-08

H + + Ra(nl=2s) → H + + Ra + + e-

Table 2 (Theory)

E, MeV σ 2s , 10 -16 cm 2
BE78
0.02 .6076E-16
0.03 .6558E-14
0.05 .1669E-12
0.07 .9091E-12
0.10 .4570E-11
0.15 .2427E-10
0.20 .7379E-10
0.30 .3150E-09
0.50 .1513E-08
0.70 .3485E-08
1.0 .6702E-08
1.5 .9963E-08
2.0 .1228E-07
3.0 .3958E-07
5.0 .2539E-06
7.0 .6052E-06
10. .1145E-05
15. .1787E-05
20. .2116E-05
30. .2285E-05
50. .2075E-05
70. .1795E-05
100. .1470E-05
150. .1126E-05
200. .9166E-06
300. .6758E-06
500. .4501E-06
700. .3412E-06
1000. .2526E-06
1500. .1785E-06
2000. .1392E-06

H + + Ra(nl=2p) → H + + Ra + + e-

Table 3 (Theory)

E, MeV σ 2p , 10 -16 cm 2
CH73 BE78
0.015 — .5060E-18
0.02 — .3847E-16
0.03 — .1866E-14
0.05 — .6455E-13
0.07 — .4594E-12
0.10 — .3196E-11
0.15 — .2429E-10
0.20 — .9636E-10
0.30 — .6011E-09
0.50 .7349E-08 .4851E-08
0.70 .1875E-07 .1639E-07
1.0 .5738E-07 .5198E-07
1.5 .1733E-06 .1620E-06
2.0 .3456E-06 .3279E-06
3.0 .7941E-06 .7781E-06
5.0 .1936E-05 .1918E-05
7.0 .3138E-05 .3119E-05
10. .4744E-05 .4723E-05
15. .6656E-05 .6654E-05
20. .7694E-05 .7797E-05
30. .8667E-05 .8701E-05
50. .8399E-05 .8446E-05
70. .7528E-05 .7595E-05
100. .6332E-05 .6395E-05
150. .4856E-05 .4976E-05
200. .3910E-05 .4062E-05
300. .2828E-05 .2985E-05
500. .1877E-05 .1975E-05
700. .1464E-05 .1490E-05
1000. .1047E-05 .1099E-05
1500. — .7731E-06
2000. — .6009E-06

H + + Ra(nl=3s) → H + + Ra + + e-

Table 4 (Theory)

E, MeV σ 3s , 10 -16 cm 2
JO79
0.005 .2447E-11
0.007 .8708E-11
0.01 .3246E-10
0.015 .1368E-09
0.02 .3606E-09
0.03 .1266E-08
0.05 .4683E-08
0.07 .8444E-08
0.10 .1188E-07
0.15 .1951E-07
0.20 .5443E-07
0.30 .2196E-06
0.50 .5156E-06
0.70 .7449E-06
1.0 .1913E-05
1.5 .6412E-05
2.0 .1214E-04
3.0 .2215E-04
5.0 .3224E-04
7.0 .3478E-04
10. .3425E-04
15. .3023E-04
20. .2643E-04
30. .2088E-04
50. .1489E-04
70. .1153E-04
100. .8788E-05
150. .6290E-05
200. .4970E-05
300. .3531E-05
500. .2317E-05
700. .1716E-05
1000. .1257E-05
1500. .8809E-06
2000. .6854E-06

H + + Ra(nl=3p) → H + + Ra + + e-

Table 5 (Theory)

E, MeV σ 3p , 10 -16 cm 2
JO79
0.003 .1301E-12
0.005 .1643E-11
0.007 .8131E-11
0.01 .4304E-10
0.015 .2651E-09
0.02 .9181E-09
0.03 .4778E-08
0.05 .2984E-07
0.07 .8210E-07
0.10 .1985E-06
0.15 .4341E-06
0.20 .7021E-06
0.30 .1497E-05
0.50 .4689E-05
0.70 .1010E-04
1.0 .2136E-04
1.5 .4355E-04
2.0 .6495E-04
3.0 .9797E-04
5.0 .1311E-03
7.0 .1413E-03
10. .1399E-03
15. .1260E-03
20. .1116E-03
30. .9008E-04
50. .6474E-04
70. .5105E-04
100. .3906E-04
150. .2835E-04
200. .2247E-04
300. .1626E-04
500. .1060E-04
700. .7933E-05
1000. .5840E-05
1500. .4123E-05
2000. .3210E-05

H + + Ra(nl=3d) → H + + Ra + + e-

Table 6 (Theory)

E, MeV σ 3d , 10 -16 cm 2
JO79
0.003 .3894E-14
0.005 .7747E-13
0.007 .5431E-12
0.01 .4182E-11
0.015 .4061E-10
0.02 .1953E-09
0.03 .1670E-08
0.05 .2067E-07
0.07 .9487E-07
0.10 .4163E-06
0.15 .1816E-05
0.20 .4452E-05
0.30 .1270E-04
0.50 .3256E-04
0.70 .5406E-04
1.0 .8430E-04
1.5 .1336E-03
2.0 .1794E-03
3.0 .2532E-03
5.0 .3352E-03
7.0 .3657E-03
10. .3687E-03
15. .3388E-03
20. .3029E-03
30. .2449E-03
50. .1746E-03
70. .1362E-03
100. .1030E-03
150. .7406E-04
200. .5833E-04
300. .4173E-04
500. .2688E-04
700. .2003E-04
1000. .1471E-04
1500. .1033E-04
2000. .7994E-05