Research Article

New Phase Space Calculations for β-Decay Half-Lives

Table 3

Calculated phase space factors for electron capture (assuming exchange corrections to be equal to 1). The value of maximum -decay energy is taken from [15] for pure Fermi transitions. The electron densities, their ratios, and binding energies are also provided for orbitals and , including those given in [2]. Binding energies are given in units of keV.

Nucleus (MeV) [2] [TW] [2] [TW] [2] [TW] [2][TW] [TW] [2]

C 1.9104 0.00031 0.00031 0.04930 0.02867 0.18790 0.62660 0.12600 0.01176 0.00703 0.00640
O 2.83186 0.00075 0.00065 0.05640 0.04420 0.40160 1.03733 0.02440 0.03251 0.03297 0.03786
Ne 3.405 0.00151 0.00118 0.05840 0.05794 0.68540 1.48302 0.03400 0.06659 0.08713 0.11005
Mg 4.131 0.00268 0.00199 0.06660 0.06811 1.07210 2.11143 0.06330 0.15721 0.218 0.29060
Al 4.2331 0.00344 0.00251 0.06990 0.07265 1.30500 2.40715 0.08940 0.14631 0.27558 0.39270
Si 4.839 0.00435 0.00312 0.07290 0.07661 1.55960 2.74689 0.11770 0.18077 0.47240 0.65060
S 5.461 0.00664 0.00467 0.07810 0.08342 2.14550 3.49498 0.18930 0.25934 0.90680 1.27140
Cl 5.4908 0.00807 0.00563 0.08040 0.08628 2.47200 3.91749 0.22920 0.30899 1.10727 1.56600
Ar 6.043 0.00970 0.00675 0.08240 0.08862 2.82240 4.33190 0.27020 0.36199 1.61130 2.28490
K 6.05 0.01156 0.00802 0.08440 0.09079 3.20600 4.77984 0.32630 0.41921 1.92311 2.73480
Ca 6.642 0.01367 0.00947 0.08620 0.09259 3.60740 5.25087 0.37710 0.48351 2.74237 3.90650
Sc 6.4311 0.01600 0.01113 0.08790 0.09430 4.03810 5.73657 0.43780 0.54865 3.02434 4.28930
Ti 6.986 0.01870 0.01300 0.08960 0.09579 4.49280 6.25222 0.50040 0.62068 4.17496 5.92320
V 7.0543 0.02170 0.01512 0.09100 0.09699 4.96640 6.78377 0.56370 0.69826 4.95575 7.02120
Mn 7.6311 0.02870 0.02016 0.09380 0.09920 5.98920 7.92722 0.69460 0.86703 7.74617 10.9103
Fe 2.374 0.0328 0.0232 0.0950 0.0987 7.1120 8.5130 0.8461 0.958 0.859 1.2033
Co 8.2498 0.03730 0.02651 0.09620 0.10077 7.11200 9.14731 0.84610 1.05584 11.91799 16.6144
Ni 2.136 0.0423 0.0303 0.0974 0.1013 8.3328 9.7882 1.0081 1.158 0.907 1.2580
Zn 1.626 0.0538 0.0390 0.0995 0.1025 9.6586 11.1571.1936 1.380 0.675 0.9261
Ga 5.175 0.0604 0.0410 0.1006 0.1029 10.3671 11.8751.2977 1.498 7.80 10.613
Br 4.963 0.0935 0.0704 0.1035 0.1048 13.4737 15.0001.7820 2.021 11.45 15.162
Rb 2.23815 0.1149 0.0883 0.1063 0.1080 15.1997 16.6902.0651 2.263 9.069 11.744
Y 3.6226 0.1402 0.1091 0.1080 0.1174 17.0384 18.4502.3725 2.438 9.528 12.114
Nb 6.111 0.170 0.1344 0.1098 0.1059 18.9856 20.421 2.6977 2.994 33.17 41.975
Cd 2.587 0.319 0.2663 0.1159 0.1102 26.7112 28.0444.0180 4.351 11.66 14.019
In 6.050 0.348 0.2930 0.1168 0.1116 27.9399 29.2324.2375 4.548 71.05 84.541
Ag 1.345 0.293 0.2423 0.1150 0.1086 25.5140 26.8643.8058 4.161 2.816 3.4256
Sb 7.920 0.413 0.3526 0.1187 0.1096 30.4912 31.7264.6983 5.095 146.5 172.43
Sb 3.913 0.413 0.3516 0.1187 0.1096 30.4912 31.7264.6983 5.095 35.38 41.804
Te 6.070 0.449 0.3844 0.1196 0.1113 31.8138 33.0414.9392 5.314 93.70 109.93
I 5.729 0.488 0.4121 0.1205 0.1124 33.1694 34.3455.1881 5.542 91.54 106.40
I 7.780 0.488 0.4215 0.1205 0.1124 33.1694 34.3455.1881 5.542 169.3 196.75
Xe 4.450 0.529 0.4609 0.1215 0.1123 34.5644 35.7055.4528 5.822 60.15 69.410
Ba 5.00 0.623 0.5496 0.1234 0.1130 37.4406 38.5145.9888 6.375 90.65 103.51
Xe 1.617 0.529 0.4599 0.1215 0.1123 34.5644 35.7055.4528 5.821 7.72 8.9482
Cs 4.824 0.574 0.501 0.1224 0.112 35.9846 37.1115.7143 6.128 76.88 88.697
Re 2.800 2.69 2.593 0.1448 0.128 71.6764 72.49112.5267 13.26 22.86 24.152
Bi 2.708 4.88 4.837 0.1561 0.138 90.5259 91.37316.2370 17.25 228.17 233.83