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GENERAL: See also (1970AJ04) and Table 15.1 [Table of Energy Levels] (in PDF or PS) here.

Model calculations: (1973PH03, 1973RE17).

Special levels: (1973PH03, 1974VA24).

Muon and neutrino capture and reactions: (1973BE16, 1973BU20).

Pion capture and reactions: (1970JA11).

Special reactions: (1971AR02, 1973KO1D, 1973WI15, 1974KO25, 1975UD01).

Other topics: (1970SU1B, 1973PH03, 1973RE17, 1974VA24, 1975BE31).

1. 15C(β-)15N

Qm = 9.772

The half-life is 2.449 ± 0.004 sec (D.E. Alburger, private communication). See also (1970AL21). Transitions have been observed to the ¹⁵N_g.s. and to the upper of the 5.3 MeV levels of ¹⁵N. The latter transition (which is to a 1/2⁺ state) is clearly allowed: see Table 15.2 (in PDF or PS). Therefore J^π(¹⁵C_g.s.) = 1/2⁺ or 3/2⁺ (1959AL06, 1959AL97, 1966AL12, 1969GA05). Weak transitions are observed to ¹⁵N*(7.30, 8.31, 8.57, 9.05). See also (1970AS1C) and (1970HS02, 1972TO03; theor.).

2. 9Be(6He, α)11Be

Qm = 6.344

Eb = 19.072

See (1970AJ04).

3. 9Be(7Li, p)15C

Qm = 9.094

Observed proton groups and a γ-ray measurement are displayed in Table 15.3 (in PDF or PS) (1974GA33, 1975HA42). τ_m for ¹⁵C*(0.74) = 3.77 ± 0.11 nsec (1968ME08). Angular distributions have been reported at E(⁷Li) = 1.7 to 1.9 MeV (1969KA1C; p₁ → p₄), 5.6-6.2 MeV (1969SN02; p₀, p₁) and 20 MeV (1974GA33; to states with E_x < 8.6 MeV, and partial distributions to ¹⁵C*(9.79, 10.25, 11.13, 11.83). See also (1970AJ04).

4. 14C(n, γ)15C

Qm = 1.218

σ_γ < 1 μb (1951YA1A, 1973MU14).

5. 14C(n, n)14C

Eb = 1.218

See (1973PH03, 1974PH03; theor.).

6. 14C(d, p)15C

Qm = -1.007

Observed proton groups are displayed in Table 15.3 (in PDF or PS) (1973GO28, 1975GO31) and compared with the results of reaction 3. The spectroscopic factors obtained for the bound states ¹⁵C*(g.s., 0.74) [J^π = 1/2⁺ and 5/2⁺, respectively] are somewhat less than the value 1 predicted theoretically (1973PH03, 1973RE17) [see, however, (1975CE04)]. τ_m of ¹⁵C*(0.74) = 3.73 ± 0.23 nsec (1962LO02): the angular distribution of the 0.74 MeV γ-rays requires J ≥ 5/2; l_n = 2 stripping permits J^π = 3/2⁺ or 5/2⁺. Therefore J^π = 5/2⁺ for ¹⁵C*(0.74) (1962CH14); g = -0.77 ± 0.06 (1975HA42). See (1970AJ04) for a review of the earlier work.

7. 15N(n, p)15C

Qm = -8.989

See ¹⁶N in (1977AJ02).

8. 18O(n, α)15C

Qm = -5.009

See (1966BA1F).

The following light-particle induced reactions leading to ¹⁵C have not been reported:

13C(t, p)15C	Qm = 0.913
14C(t, d)15C	Qm = -5.039
14C(α, 3He)15C	Qm = -19.360