Table 2.
Most uncertain (n, γ) reactions (above Pb) relevant to i-process nucleosynthesis, according to the three different nuclear models, A, B, and C.
| ⟨σ⟩B/⟨σ⟩A | ⟨σ⟩C/⟨σ⟩A | |
|---|---|---|
| 216Pb(n, γ) | 1.57e−2 | 9.71e−1 |
| 217Po(n, γ) | 8.72e−2 | 8.45e−2 |
| 229Rn(n, γ) | 9.85e+0 | 1.21e+1 |
| 224Fr(n, γ) | 9.63e+0 | 1.23e+1 |
| 230Fr(n, γ) | 5.68e+0 | 3.79e+1 |
| 228Ra(n, γ) | 8.93e−1 | 8.37e−2 |
| 232Ra(n, γ) | 1.52e+1 | 7.64e+0 |
| 233Ra(n, γ) | 1.29e+1 | 6.80e+0 |
| 228Ac(n, γ) | 5.69e-1 | 8.96e+1 |
| 236Ac(n, γ) | 3.39e+0 | 1.38e+1 |
| 232Pa(n, γ) | 3.61e+0 | 1.13e+1 |
| 234Pa(n, γ) | 3.62e+1 | 2.56e+1 |
| 238Pa(n, γ) | 1.33e+1 | 3.08e+1 |
Notes. The numbers give the ratios of the Maxwellian-averaged cross-section at T = 250 MK, which corresponds to the temperature at the bottom of the thermal pulse during the PIE. This table includes all (n, γ) reactions that differ by at least of factor of 10 between two different nuclear models.
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