The 13N(p,γ)14O Reaction
- Introduction
No experimental cross section data are found. The rates are dominanted by the contribution of the 1− resonance at ER ≅ 0.53 MeV. NACRE refers to [352 - 354] for its total width, to [355, 356] for the γ-branching ratio, and to [353] for the γ-width. The Coulomb break-up measurements [357, 358] are rejected.
Figure 77 presents the PM prediction of the S-factors. The resonance energy and the widths of that 1− state, and their uncertainties are taken from NACRE in order to fix the height of the resonance to normalise the PM S-factors. The non-resonant contributions are estimated from the same nuclear potentials as for 13C(p , γ) 14N, and turn out to be insignificant at low temperatures. Note that the s-wave (0−) transition is forbidden to the 14O ground state, save the unlikely possibility of very strong (non-resonant) cascade transitions via the 1− state from the higher energy range. Similarly, the E1 cascade transition, possibly from the third excited (0+) state, is not included here. The adopted parameter values are given in Table 67. The present S(0) = 3.8−0.8+1.0 keV b. In comparison, S(0) = 5.77 keV b [RAD10].
Table 32 gives the reaction rates at 0.008 ≤ T9 ≤ 10. Figure 78 compares the present and the NACRE rates.
See [360] for a cluster model calculation; [300] for a potential model prediction.
- Figures
* Click on the figures to see the zoomed version.
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- Tables
* Click HERE to view the figure. Click HERE to download the data file for the table.
| T9 | adopted | low | high | T9 | adopted | low | high |
| 0.008 | 1.48E-24 | 1.15E-24 | 1.86E-24 | 0.2 | 1.56E-03 | 1.21E-03 | 1.97E-03 |
| 0.009 | 2.56E-23 | 2.00E-23 | 3.22E-23 | 0.25 | 1.03E-02 | 7.96E-03 | 1.30E-02 |
| 0.01 | 2.98E-22 | 2.33E-22 | 3.76E-22 | 0.3 | 4.87E-02 | 3.74E-02 | 6.14E-02 |
| 0.011 | 2.55E-21 | 1.99E-21 | 3.22E-21 | 0.35 | 2.03E-01 | 1.54E-01 | 2.56E-01 |
| 0.012 | 1.71E-20 | 1.33E-20 | 2.15E-20 | 0.4 | 7.71E-01 | 5.80E-01 | 9.71E-01 |
| 0.013 | 9.34E-20 | 7.28E-20 | 1.18E-19 | 0.45 | 2.53E+00 | 1.89E+00 | 3.18E+00 |
| 0.014 | 4.32E-19 | 3.37E-19 | 5.44E-19 | 0.5 | 6.99E+00 | 5.23E+00 | 8.80E+00 |
| 0.015 | 1.74E-18 | 1.36E-18 | 2.19E-18 | 0.6 | 3.42E+01 | 2.57E+01 | 4.31E+01 |
| 0.016 | 6.20E-18 | 4.84E-18 | 7.81E-18 | 0.7 | 1.08E+02 | 8.14E+01 | 1.36E+02 |
| 0.018 | 5.89E-17 | 4.60E-17 | 7.42E-17 | 0.8 | 2.53E+02 | 1.92E+02 | 3.19E+02 |
| 0.02 | 4.10E-16 | 3.19E-16 | 5.16E-16 | 0.9 | 4.85E+02 | 3.69E+02 | 6.11E+02 |
| 0.025 | 1.99E-14 | 1.55E-14 | 2.50E-14 | 1. | 8.07E+02 | 6.16E+02 | 1.02E+03 |
| 0.03 | 3.84E-13 | 2.99E-13 | 4.83E-13 | 1.25 | 1.94E+03 | 1.49E+03 | 2.44E+03 |
| 0.04 | 2.86E-11 | 2.23E-11 | 3.60E-11 | 1.5 | 3.33E+03 | 2.56E+03 | 4.19E+03 |
| 0.05 | 6.14E-10 | 4.78E-10 | 7.73E-10 | 1.75 | 4.74E+03 | 3.67E+03 | 5.97E+03 |
| 0.06 | 6.37E-09 | 4.96E-09 | 8.01E-09 | 2. | 6.03E+03 | 4.68E+03 | 7.60E+03 |
| 0.07 | 4.13E-08 | 3.21E-08 | 5.19E-08 | 2.5 | 8.05E+03 | 6.26E+03 | 1.01E+04 |
| 0.08 | 1.93E-07 | 1.50E-07 | 2.43E-07 | 3. | 9.31E+03 | 7.25E+03 | 1.17E+04 |
| 0.09 | 7.13E-07 | 5.55E-07 | 8.97E-07 | 3.5 | 1.00E+04 | 7.80E+03 | 1.26E+04 |
| 0.1 | 2.20E-06 | 1.71E-06 | 2.77E-06 | 4. | 1.03E+04 | 8.05E+03 | 1.30E+04 |
| 0.11 | 5.90E-06 | 4.59E-06 | 7.42E-06 | 5. | 1.03E+04 | 8.07E+03 | 1.30E+04 |
| 0.12 | 1.41E-05 | 1.10E-05 | 1.78E-05 | 6. | 1.00E+04 | 7.85E+03 | 1.26E+04 |
| 0.13 | 3.10E-05 | 2.41E-05 | 3.90E-05 | 7. | 9.74E+03 | 7.66E+03 | 1.22E+04 |
| 0.14 | 6.30E-05 | 4.90E-05 | 7.93E-05 | 8. | 9.62E+03 | 7.58E+03 | 1.20E+04 |
| 0.15 | 1.20E-04 | 9.34E-05 | 1.51E-04 | 9. | 9.67E+03 | 7.62E+03 | 1.20E+04 |
| 0.16 | 2.17E-04 | 1.69E-04 | 2.74E-04 | 10. | 9.85E+03 | 7.78E+03 | 1.22E+04 |
| 0.18 | 6.25E-04 | 4.85E-04 | 7.86E-04 |
- Other
| li | [ER] | Vi | r0 | a0 | Cc | ||
| R.C. | s | [1-, 0.528] | ad/hi | -53.92 | 0.96 | 0.30 | 0.977/1.23 |
| lo | -53.91 | 0.775 | |||||
| N.R. | pd | ad/lo/hi | -30.48 | 1.12 | 0.39 | 1.0/0.8/1.2 |