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σ 1s σ 2s σ 2p

H + + Ca(nl=1s) → H + + Ca + + e-

Table 1 (Theory)

E, MeV σ 1s , 10 -16 cm 2
KH69 BE78 RHF [CL74] RHF [BU93]
0.007 — .4998E-13 .7046E-13 .7049E-13
0.01 — .4273E-12 .6254E-12 .6257E-12
0.015 — .3649E-11 .6343E-11 .6346E-11
0.02 — .1417E-10 .2634E-10 .2636E-10
0.03 — .8584E-10 .1528E-09 .1528E-09
0.05 .9340E-09 .7013E-09 .1184E-08 .1184E-08
0.07 .3263E-08 .2642E-08 .4177E-08 .4178E-08
0.10 .1189E-07 .9841E-08 .1472E-07 .1472E-07
0.15 .4652E-07 .4208E-07 .5536E-07 .5537E-07
0.20 .1213E-06 .1101E-06 .1312E-06 .1312E-06
0.30 .4071E-06 .3891E-06 .3906E-06 .3906E-06
0.50 .1595E-05 .1563E-05 .1227E-05 .1227E-05
0.70 .3520E-05 .3446E-05 .2243E-05 .2243E-05
1.0 .7102E-05 .7042E-05 .3730E-05 .3730E-05
1.5 .1373E-04 .1367E-04 .5748E-05 .5747E-05
2.0 .1992E-04 .1988E-04 .7303E-05 .7303E-05
3.0 .2981E-04 .2964E-04 .9921E-05 .9921E-05
5.0 .4063E-04 .4032E-04 .1505E-04 .1505E-04
7.0 .4450E-04 .4421E-04 .1969E-04 .1969E-04
10. .4487E-04 .4491E-04 .2455E-04 .2456E-04
15. .4125E-04 .4161E-04 .2803E-04 .2803E-04
20. .3709E-04 .3754E-04 .2846E-04 .2847E-04
30. .3012E-04 .3077E-04 .2647E-04 .2647E-04
50. .2171E-04 .2241E-04 .2153E-04 .2154E-04
70. .1708E-04 .1775E-04 .1794E-04 .1794E-04
100. — .1358E-04 .1438E-04 .1439E-04

H + + Ca(nl=2s) → H + + Ca + + e-

Table 2 (Theory)

E, MeV σ 2s , 10 -16 cm 2
CH73 BE78
0.001 — .5656E-09
0.002 — .1679E-07
0.003 — .8732E-07
0.005 — .5406E-06
0.007 — .1513E-05
0.01 — .3803E-05
0.015 .7765E-05 .8165E-05
0.02 .1106E-04 .1133E-04
0.03 .1492E-04 .1458E-04
0.05 .5800E-04 .4915E-04
0.07 .1797E-03 .1627E-03
0.10 .4712E-03 .4627E-03
0.15 .1099E-02 .1094E-02
0.20 .1714E-02 .1602E-02
0.30 .2670E-02 .2647E-02
0.50 .3622E-02 .3584E-02
0.70 .3844E-02 .3870E-02
1.0 .3823E-02 .3838E-02
1.5 .3438E-02 .3476E-02
2.0 .3041E-02 .3096E-02
3.0 .2440E-02 .2505E-02
5.0 .1735E-02 .1819E-02
7.0 .1367E-02 .1440E-02
10. .1043E-02 .1112E-02
15. .7806E-03 .8169E-03
20. .6155E-03 .6520E-03
30. .4422E-03 .4702E-03
50. — .3091E-03
70. — .2331E-03
100. — .1728E-03

H + + Ca(nl=2p) → H + + Ca + + e-

Table 3 (Theory)

E, MeV σ 2p , 10 -16 cm 2
CH73 BE78 RHF [CL74] RHF [BU93]
0.001 — .4807E-09 .6698E-11 .6833E-11
0.002 — .2472E-07 .5044E-09 .5059E-09
0.003 — .1824E-06 .4438E-08 .4429E-08
0.005 — .1702E-05 .4953E-07 .4939E-07
0.007 — .6601E-05 .2075E-06 .2071E-06
0.01 — .2345E-04 .8448E-06 .8444E-06
0.015 .1093E-03 .8335E-04 .3818E-05 .3820E-05
0.02 .2048E-03 .1823E-03 .1086E-04 .1087E-04
0.03 .4915E-03 .4756E-03 .4598E-04 .4599E-04
0.05 .1339E-02 .1303E-02 .2481E-03 .2481E-03
0.07 .2331E-02 .2297E-02 .6548E-03 .6548E-03
0.10 .3891E-02 .3861E-02 .1577E-02 .1577E-02
0.15 .6284E-02 .6300E-02 .3513E-02 .3513E-02
0.20 .8390E-02 .8361E-02 .5457E-02 .5457E-02
0.30 .1148E-01 .1140E-01 .8559E-02 .8560E-02
0.50 .1479E-01 .1467E-01 .1176E-01 .1175E-01
0.70 .1591E-01 .1596E-01 .1289E-01 .1286E-01
1.0 .1639E-01 .1638E-01 .1326E-01 .1321E-01
1.5 .1555E-01 .1567E-01 .1292E-01 .1283E-01
2.0 .1438E-01 .1455E-01 .1230E-01 .1220E-01
3.0 .1217E-01 .1245E-01 .1102E-01 .1087E-01
5.0 .9144E-02 .9562E-02 .8879E-02 .8769E-02
7.0 .7382E-02 .7816E-02 .7421E-02 .7341E-02
10. .5762E-02 .6185E-02 .5989E-02 .5919E-02
15. .4391E-02 .4665E-02 .4577E-02 .4534E-02
20. .3513E-02 .3785E-02 .3734E-02 .3701E-02
30. .2566E-02 .2792E-02 .2773E-02 .2751E-02
50. — .1874E-02 .1876E-02 .1862E-02
70. — .1437E-02 .1438E-02 .1428E-02
100. — — .1081E-02 .1074E-02