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15C (1981AJ01)
(See Energy Level Diagrams for 15C)
GENERAL: See also (1976AJ04) and Table 15.1 [Table of Energy Levels] (in PDF or PS) here.
Model calculations:(1976LI16).
Special levels:(1976LI16).
Astrophysical questions:(1977LI1H, 1978SN1A).
Special reactions involing 15C:(1975FE1A, 1975KO1J, 1977AR06, 1978GE1C, 1978HE1C, 1978KO01, 1979AL22).
Muon and neutrino capture and reactions:(1977BA1P).
Pion capture and reactions:(1977BA24).
Other topics:(1976LI16, 1978DA1A, 1979BE1H).
| 1. 15C(β-)15N | Qm = 9.7717 |
The half-life of 15C is 2.449 ± 0.005 sec (1979AL23). Transitions have been observed to 15Ng.s. and to the upper of the 5.3 MeV states in 15N which has Jπ = 1/2+. Therefore Jπ(15Cg.s.) = 1/2+ or 3/2+. Weak transitions are observed to 15N*(7.30, 8.31, 8.57, 9.05) (1979AL23): see Table 15.16 (in PDF or PS). See also (1976AJ04) and (1977RI08, 1979AL23; theor.).
| 2. 9Be(7Li, p)15C | Qm = 9.094 |
Observed proton groups are displayed in Table 15.2 (in PDF or PS). Angular distributions have been reported for E(7Li) = 1.7 to 20 MeV: see (1976AJ04).
| 3. 13C(t, p)15C | Qm = 0.9127 |
|g| = 0.703 ± 0.012 for 15C*(0.74) (1980AS01). See also (1976AL16, 1979AL23).
| 4. 13C(α, 2p)15C | Qm = -18.9013 |
At Eα = 65 MeV 15C*(0.74, 6.74, 7.35) are strongly populated. The angular distribution to 15C*(6.74 + 7.35) is consistent with L = 4 leading to Jπ = 7/2- and 9/2- for these two states on the basis of the (2J + 1) "rule" (1978JA10). See also (1976CE1E, 1976JA13). [However see Table 15.1 (in PDF or PS) for the density of states, and compare with the resolution of (1978JA10).]
| 5. (a) 14C(n, γ)15C | Qm = 1.2182 | |
| (b) 14C(n, n)14C | Eb = 1.2182 |
σγ < 1 μb (1973MU14). See also (1976AJ04).
| 6. 14C(d, p)15C | Qm = -1.0065 |
Observed proton groups are displayed in Table 15.2 (in PDF or PS). See also (1976AJ04).
| 7. 15N(n, p)15C | Qm = 8.9893 |
See 16N in (1977AJ02).
| 8. 18O(n, α)15C | Qm = -5.0097 |
See (1976AJ04).