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## 10C (1974AJ01)

(See Energy Level Diagrams for 10C)

GENERAL: See also (1966LA04) and Table 10.24 [Table of Energy Levels] (in PDF or PS).

Model calculations: (1968FA1B, 1969SA1A, 1969SO08, 1973SA30).

Special reactions: (1967AU1B, 1969YI1A, 1971AR02).

Other topics: (1968FA02, 1968FA1B, 1969SO08, 1969SO1E, 1970FO1B, 1972AN05, 1972CA37).

Ground-state properties: (1966KE16, 1968FA02, 1968FA1B, 1969GA1G, 1973SA30).

 1. 10C(β+)10B Qm = 3.650

10C decays with a half-life of 19.42 ± 0.06 sec to 10B*(0.7, 1.7): the branching ratios are 98.53 ± 0.02% and 1.465 ± 0.014%, respectively (1972RO03): see reaction 39 in 10B and Tables 10.21 (in PDF or PS) and 10.24 (in PDF or PS).

 2. 7Be(3He, 2p)4He4He Qm = 11.274 Eb = 14.999

See (1972PA1C; astrophys.).

 3. 9Be(p, π-)10C Qm = -136.634

At Ep = 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+- intensity ratio is usually ≫ 1 for analog states in 10Be and 10C (1973DA09). See also (1971DA10, 1972RO22, 1973DI1J).

 4. 9Be(3He, 2n)10C Qm = -5.566

See (1973MO1N).

 5. 10B(p, n)10C Qm = -4.433 Ethresh. = 4880.0 ± 2.0 keV; Q0 = -4432.8 ± 1.8 keV (1966FR09).

The first excited state of 10C is located at Ex = 3.3527 ± 0.0015 MeV (1969PA09: from γ-decay), 3.38 ± 0.03 MeV (1963EA01: neutron threshold), 3.35 ± 0.01 MeV (1966SE03: from γ-decay). τm for 10C*(3.35) = 155 ± 25 fsec; Γγ = 4.25 ± 0.69 meV (1968FI09). Angular distributions have been measured for the n0 and n1 groups and for the neutrons corresponding to 10C*(5.2 ± 0.3) at Ep = 30 and 50 MeV. The excitation of 10C*(6.5 ± 0.3, 8.3 ± 0.3, 8.9 ± 0.3) is also reported (1970CL01). See also (1969BR13, 1973GO1V), (1966LA04) and 11C in (1975AJ02).

 6. 10B(3He, t)10C Qm = -3.669

At E(3He) = 14 MeV the angular distribution of the t0 group has been measured (1970NU02). At E(3He) = 30.6 and 40 MeV triton groups have been observed to 10C*(0, 3.37 ± 0.03, (5.03 ± 0.06), 5.28 ± 0.06, (5.60 ± 0.06), 6.58 ± 0.06) (1966MA36). At E(3He) = 30.3 MeV, the energy of the first excited state is determined to be 3.344 ± 0.008 MeV, and the triton groups corresponding to the two states at Ex = 5.03 and 5.60 MeV suggested by (1966MA36) are assigned to 11C (1968BR23). See also 13N in (1976AJ04).

 7. 10B(6Li, 6He)10C Qm = -7.160

Both 10C*(0, 3.35) are strongly populated at E(6Li) = 30 MeV, θ = 16° (1972LE1P).

 8. 12C(γ, 2n)10C Qm = -31.846

See (1959OC07).

 9. 12C(p, t)10C Qm = -23.364

Angular distributions have been reported at Ep = 30.0 to 54.1 MeV (1967CO23; t0), 43 MeV (1967BE27; t0, t1, and to 10C*(5.3)), 43.7 MeV (1966CE05; t0, t1) and 49.5 MeV (1970NE17; t0, t1; polarized protons). L = 0, 2 and 2, respectively for 10C*(0, 3.35, 5.3), and therefore Jπ = 0+, 2+ and 2+: see (1967BE27). [10C*(5.3) may correspond to several unresolved states: see 10Be.] At Ep = 43 and 52 MeV (1967BE27) report the excitation of 10C*(5.29 ± 0.06, 6.61 ± 0.06) [Γc.m. = 300 ± 50 keV for both these states]. The states at Ex = 7.2 ± 0.2 and 10.2 ± 0.2 MeV reported by (1965BA17) are not observed. See also (1965CA1C, 1968TA1P) and (1971KA04; theor.).

 10. 12C(12C, 10C)14C Qm = -18.723

See (1972MO1E, 1973SC1J).

 11. 13C(3He, 6He)10C Qm = -15.243

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 (1973KA16). Three states of 10C are observed with Ex ≈ 10 MeV. One of these [Ex = 10.72 MeV] is very strongly populated. A search for a T = 2 state with Ex ≈ 22 MeV was unsuccessful (1973BE2J).

 12. 14N(3He, 7Li)10C Qm = -12.816

See (1971DE37).