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GENERAL: See also (74AJ01) and Table 10.22 [Table of Energy Levels] (in PDF or PS).

Model calculations:(IR74A, IR76C).

Special reactions (See also reaction 2 in (74AJ01).):(BA73PP, RI74C, BA75L, BE76DD, BU76G, AR77B).

Pion reactions (See also reactions 3 and 9 here.):(GI75B, RE75, WA77A, HO77P, AM78).

Astrophysical questions:(PA72L, VI76D, SI77D).

Other topics:(IR74A, IR76C, VO76C).

Ground state properties:(BE75Q) (Note added in proof: Q₀ = -23360.74 ± 0.5 keV (J.A. Nolen, private communication): this leads to an atomic mass excess of 15699.9 ± 0.5 keV for ¹⁰C.).

1. 10C(β+)10B

Qm = 3.651

¹⁰C decays with a half-life of 19.255 ± 0.053 sec to ¹⁰B*(0.7, 1.7): the branching ratios are (98.53 ± 0.02)% and (1.465 ± 0.014)% respectively (RO72C): see reaction 40 in ¹⁰B and Table 10.20 (in PDF or PS).

2. 7Li(7Li, 4n)10C

Qm = -18.172

See (CE74E).

3. 9Be(p, π-)10C

Qm = -136.633

At E_p = 185 MeV the π^- spectrum shows groups corresponding to ¹⁰C*(0, 3.36 ± 0.07, 5.28 ± 0.06, 6.63 ± 0.15). Angular distributions have been obtained for the π^- corresponding to these four states. The π⁺/π^- intensity ratio is usually >> 1 for analog states in ¹⁰Be and ¹⁰C (DA73F). The population of ¹⁰Be*(0, 3.35, 5.28) is also reported at E_p = 613 MeV (CO78M). See also (DI74F, RE75, DI76D, NO76F; theor.).

4. 9Be(3He, 2n)10C

Qm = -5.566

See (MO74F).

5. 10B(p, n)10C

Qm = -4.434

E_thresh. = 4880.6 ± 0.6 keV (RO74F); the mean of this measurement and the earlier measurement of (FR66E) leads to Q₀ = -4432.84 ± 0.6 keV (RO74F). See also (FR76C).

The first excited state of ¹⁰C is located at E_x = 3.3527 ± 0.0015 MeV (PA69; from γ-decay). τ_m for ¹⁰C*(3.35) = 155 ± 25 fsec; Γ_γ = 4.25 ± 0.69 meV (FI68C). Angular distributions have been measured for the n₀ and n₁ groups and for the neutrons corresponding to ¹⁰C*(5.2 ± 0.3) at E_p = 30 and 50 MeV. The excitation of ¹⁰C*(6.5 ± 0.3, 8.3 ± 0.3, 8.9 ± 0.3) is also reported (CL70). See also ¹¹C in (80AJ01).

6. 10B(3He, t)10C

Qm = -3.670

Angular distributions have been measured at E(³He) = 14 MeV (NU70; t₀) and 217 MeV (WI76A; t₀, t₁ and t to ¹⁰C*(5.6)). The latter have been compared with microscopic calculations using a central + tensor interaction [J^π = 0⁺, 2⁺, 2⁺] (WI76A). The previously reported structures at 5.28 ± 0.06 and 6.58 ± 0.06 MeV (MA66H) are best fitted by E_x = 5.22 ± 0.04 [Γ = 225 ± 45 keV], 5.38 ± 0.07 [300 ± 60 keV] and 6.580 ± 0.020 MeV [190 ± 35 keV] (SC75). [It is not clear which of the 5.2 - 5.4 MeV states is the 2⁺ state studied by (WI76A).] See also (74AJ01) and ¹³N in (81AJ01).

7. 10B(6Li, 6He)10C

Qm = -7.158

See (74AJ01).

8. 12C(γ, 2n)10C

Qm = -31.846

See (JO77) and ¹²C in (80AJ01).

9. 12C(π+, d)10C

Qm = 110.728

At E_π⁺ = 49.3 MeV dσ/dΩ_lab = 0.65 ± 0.25 μb/sr (θ = 30°) for the transitions to ¹⁰C*(0 + 3.4) (AM78).

10. 12C(p, t)10C

Qm = -23.364

Angular distributions have been reported at E_p = 30.0 to 54.1 MeV [see (74AJ01)] and at 51.9 MeV (YA77; t to ¹²C*(0, 3.35, 5.28, 6.6)) and 80 MeV (AN77D; t to ¹²C*(0, 3.35, 5.3)). L = 0, 2 and 2 for ¹⁰C*(0, 3.35, 5.28 ± 0.06), and therefore J^π = 0⁺, 2⁺ and 2⁺: see (BE67S, YA77) but note that the "5.28 MeV" state is probably unresolved [see reaction 6 and ¹⁰Be]. At E_p = 51.9 MeV ¹⁰C*(0, 3.4) are strongly excited and states at E_x = 5.28, 5.55 and 6.6 MeV [L = 2 --> J^π = 2⁺] are weakly populated. The (p, t) angular distributions are compared with those of the (p, ³He) reaction to analog states in ¹⁰B (YA77).

The excitation energy of ¹⁰C*(3.4) is 3350.0 ± 1.0 keV (BE74M). (BE67S) find E_x = 6.61 ± 0.06 MeV, Γ_c.m. = 300 ± 50 keV. See also (KA74C, BA77Z) (Note added in proof: Q₀ = -23360.74 ± 0.5 keV (J.A. Nolen, private communication): this leads to an atomic mass excess of 15699.9 ± 0.5 keV for ¹⁰C.)

11. 12C(12C, 10C)14C

Qm = -18.723

See ¹⁴C in (76AJ04).

12. 13C(3He, 6He)10C

Qm = -15.241

At E(³He) = 70.3 MeV the angular distributions of the ⁶He ions corresponding to the population of ¹⁰C*(0, 3.35) have been measured. The group to ¹⁰C*(3.35) is much more intense than the ground state group: multi-step processes may be important (KA73C). (DE76H) suggest, on the basis of an FRDWBA analysis, that the process can be interpreted as a direct cluster transfer to both final states. See also (74AJ01).

13. 14N(3He, 7Li)10C

Qm = -12.816

See (DE71U).