A=13C (1991AJ01)

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¹³C (1991AJ01)

(See 13.4 [Table of Energy Levels] (in PDF or PS) and Energy Level Diagrams for ¹³C)

GENERAL: See also (1986AJ01), 2 [Electromagnetic Transitions in A = 13-15] (in PDF or PS), 13.5 [Total radiation widths of low-lying levels of ¹³C-¹³N] (in PDF or PS) and 13.6 [Parameters of the first T = 3/2 states in ¹³C and ¹³N] (in PDF or PS).

Nuclear models:(1985KW02, 1987KI1C, 1988MI1J, 1988WO04, 1989AM02, 1989PO1K, 1989WO1E, 1990FE01, 1990HO01, 1990VA01).

Special states:(1984KO40, 1985GO1A, 1985RO1J, 1985SH24, 1986AN07, 1986XU02, 1987KI1C, 1988KW02, 1988MI1J, 1988RO1R, 1988ZH1B, 1989AM02, 1989OR02, 1989RO03, 1990HO01).

Electromagnetic transitions and giant resonances:(1984VA06, 1985GO1A, 1986AD1B, 1986ER1A, 1987KI1C, 1989AM02).

Astrophysical questions:(1982BU1A, 1982CA1A, 1982GR1A, 1982WO1A, 1985BR1E, 1985HA1R, 1985HE1F, 1985MI1E, 1985PR1D, 1985RI1B, 1986DO1L, 1986FR1G, 1986GO1Q, 1986LA1C, 1986MA2E, 1986SN1C, 1986SN1D, 1986WI1H, 1987AR1C, 1987AU1A, 1987BE1H, 1987BO1B, 1987BR1P, 1987DO1A, 1987HA1C, 1987HA1U, 1987KR1M, 1987MA1C, 1987MA2G, 1987PI1E, 1987PR1A, 1987SO1F, 1987WA1L, 1987WA1F, 1987ZI1C, 1988AP1A, 1988AR1H, 1988AS1D, 1988CR1A, 1988DE1I, 1988JA1B, 1988JU1C, 1988PI1C, 1988SC1A, 1988TR1H, 1989AB1J, 1989BA2I, 1989BA2K, 1989BO1S, 1989BR1I, 1989BR1M, 1989CH1X, 1989CH1Z, 1989FR1J, 1989GI1E, 1989GU1L, 1989HA1O, 1989HO1F, 1989JI1A, 1989KA1K, 1989LO1C, 1989LO1D, 1989ME1C, 1989NO1A, 1989SM1A, 1989ST1K, 1989WE1G, 1989WH1B, 1989WY1A, 1990CA1O, 1990FU03, 1990HO1I, 1990MO1I, 1990PI1F, 1990TU1A, 1990WE1I).

Applied work:(1986BR1Q, 1986BU1H, 1986DO1M, 1986DR1E, 1986EN1A, 1986FO1D, 1986FR1H, 1986GE1C, 1986HE1F, 1986KI1J, 1986KN1E, 1986KR1F, 1986MA2D, 1986MA2G, 1986NI1C, 1986NO1C, 1986SR1B, 1986ST1K, 1986XU1C, 1987BO1U, 1987DU1A, 1987KI1I, 1987NA1O, 1987ST1C, 1988AR1G, 1988BU1C, 1988DO1D, 1988FA1A, 1988GO1J, 1988MA1A, 1988PU1A, 1988SC1C, 1989CE1D, 1989GR1F, 1989KU1P, 1989MU1A, 1989RA1M, 1990DO1C, 1990FR1F).

Complex reactions involving ¹³C:(1984BO1H, 1985KI1E, 1985KW03, 1985PO11, 1985PO14, 1985UT01, 1986AV1B, 1986GR1A, 1986HA1B, 1986HO1K, 1986MA19, 1986MA1O, 1986ME06, 1986MO15, 1986PO06, 1986SA30, 1986SO10, 1986UT01, 1986XU02, 1986XU1B, 1987AR19, 1987BA38, 1987BE1I, 1987BU07, 1987GA17, 1987GE1B, 1987LY04, 1987NA01, 1987PE1B, 1987PO23, 1987RI03, 1987SI1C, 1987SN01, 1987ST01, 1987VI02, 1987YA16, 1988BE56, 1988CA06, 1988GA11, 1988HA03, 1988JO1B, 1988KI06, 1988RU01, 1988SA19, 1989AJ1A, 1989BA92, 1989CH1U, 1989GIZV, 1989GRZQ, 1989HO16, 1989KI13, 1989POZT, 1989PR02, 1989SA10, 1989SE03, 1989TE02, 1990CH09).

Muon and neutrino capture and reactions:(1985DE42, 1985KO39, 1985MI21, 1986IS02, 1986MI09, 1986MI1M, 1987SU06, 1990CH13, 1990FU03, 1990LU1D, 1990MI1J).

Pion capture and reactions involving pions and ρ-mesons (See also reactions 27 and 41, and reaction 23 in ¹³N): (1983MA16, 1984BO1H, 1984CH1K, 1985SA06, 1986BO1N, 1986CE04, 1986DO01, 1986ER1A, 1986KO26, 1986LI1N, 1986LI1P, 1986MI1M, 1986SI07, 1986SI13, 1986SI22, 1986SU18, 1987DU08, 1987GI1C, 1987MI08, 1987PI1B, 1988BU1I, 1988CH24, 1988CH1L, 1988CHZU, 1988GIZU, 1988HA12, 1988KIZW, 1988PE1F, 1988PE1H, 1988PO1H, 1988POZV, 1988US01, 1989CH31, 1989GE10, 1989IT04, 1989JE02, 1989JO07, 1989KI25, 1989MO09, 1989PI11, 1990BE12, 1990CH12, 1990ER03, 1990ER1E, 1990FE01, 1990KO19, 1990TA1K, 1990TI1B).

Kaon capture and reactions:(1984BO1H, 1985GA1C, 1986DO01, 1986FE1A, 1986GA33, 1986MA1C, 1986MA1W, 1987FA1A, 1987PI1B, 1987PO1H, 1988FA1B, 1988PE1F, 1988PE1H, 1988PO1H, 1988ZH1H, 1989CH52, 1989DO1K, 1989PI11, 1990FE01).

Hypernuclei:(1984BO1H, 1984ZH1B, 1985BA1F, 1985BA2D, 1985GA1C, 1985KO1W, 1985KO2B, 1985YA1C, 1986AN1R, 1986BA1H, 1986DA1G, 1986DA1B, 1986DO01, 1986ER1A, 1986FE1A, 1986GA33, 1986KO1A, 1986LA1R, 1986MA1C, 1986MA1W, 1986ME1F, 1986WU1C, 1986WU1D, 1986YA1F, 1987CO1E, 1987FA1A, 1987MA08, 1987MI38, 1987PI1C, 1987PO1H, 1988CH48, 1988FA1B, 1988GA1A, 1988GA1I, 1988IT02, 1988MA1G, 1988MA58, 1988MO1L, 1988PE1H, 1988PO1H, 1988TA29, 1988WA1B, 1988ZH1H, 1989BA92, 1989BA93, 1989CH52, 1989DO1K, 1989DO1N, 1989FE07, 1989IT04, 1989KI25, 1989KO1H, 1989KO37, 1989KO48, 1989LA1H, 1989LA1I, 1989MA30, 1989MI30, 1989PI11, 1990FE01, 1990IT1A, 1990OS1A).

Other topics:(1985AN28, 1985SH24, 1986AN07, 1988KW02, 1989FU05, 1989OR02, 1990MU10).

Ground state of ¹³C:(1985AN28, 1985GO1A, 1986GL1A, 1986SI22, 1987AB03, 1987FU06, 1987GI1C, 1987KI1C, 1987SA15, 1988AR1I, 1988KE1B, 1988VA03, 1988WA08, 1988WO04, 1989AM02, 1989AN12, 1989FU05, 1989GOZQ, 1989WO1E, 1990VA01).

μ = +0.702411(1) nm (1978LEZA)
< r² > ^1/2 = 2.4628(39) fm (1985DE42) [charge radius, from muonic ¹³C]
[The neutron r.m.s. radius is 2.35 (3) fm (1979JO08).]
Natural abundance:(1.10 ± 0.03)% (1984DE53)

¹³C*(3.85): g = -0.558 ± 0.015 (1981RU04). From the γ-ray due to the transition ¹³C*(3.85 → 3.68), ΔE_x = 169.356 ± 0.020 keV: see (1986AJ01). See also (1989RA17).

1. (a) ⁶Li(⁷Li, γ)¹³C Q_m = 25.868
(b) ⁶Li(⁷Li, n)¹²C Q_m = 20.921
(c) ⁶Li(⁷Li, p)¹²B Q_m = 8.334
(d) ⁶Li(⁷Li, d)¹¹B Q_m = 7.189
(e) ⁶Li(⁷Li, t)¹⁰B Q_m = 1.992
(f) ⁶Li(⁷Li, α)⁹Be Q_m = 15.220

The yield curves for d₀ (E(⁶Li) = 4 to 14 MeV), T₀ (E(⁷Li) = 5 to 14 MeV) and α₀ (E(⁶Li) = 4 to 14 MeV) show broad, uncorrelated structures. Energy-averaged differential cross sections are also reported for a number of ¹²B, ¹¹B and ¹⁰B states. Total cross sections have been measured for E(⁷Li) = 3.8 to 6.0 MeV for p₀ → p₂, p₃₊₄, p₅; d₀ → d₃, d₄₊₅, d₆; t₀ → t₂; and α₀: the total cross sections generally increase smoothly with energy without showing any structure: see (1981AJ01). For reaction (b) see (1987SC11).

2. (a) ⁹Be(α, n)¹²C Q_m = 5.7012 E_b = 10.6476
(b) ⁹Be(α, 2n)¹¹C Q_m = -13.021

Resonances for n₀ and n₁, for γ-rays from ¹²C*(4.4, 12.7, 15.1) and resonances in the total neutron cross section are given in 13.7 (in PDF or PS). In addition the yield of neutrons to ¹²C*(7.65, 9.64) has been measured in the range E_α = 2.9 - 6.4 MeV. The n₀ and n₁ excitation functions exhibit weak resonance anomalies at E_α = 6.44 MeV corresponding to the J^π = 3/2^-, T = 3/2 state at E_x = 15.11 MeV: see 13.6 (in PDF or PS) and 13.7 (in PDF or PS) (1978HI06). For thick target yields see (1982WE16). See also (1989HE04). For polarization measurements (E_α to 100 MeV) see (1981AJ01). Reaction (b) has been studied at a number of energies for E_α = 17 to 44 MeV: see (1981AJ01, 1986AJ01). See also ¹²C in (1990AJ01), (1987EL1B, 1989CR07; applied) and (1985CA41; astrophysics).

3. (a) ⁹Be(α, d)¹¹B Q_m = -8.0314 E_b = 10.6476
(b) ⁹Be(α, t)¹⁰B Q_m = -13.2283

Excitation curves have been measured for E_α = 15 to 27.5 MeV for reaction (a) [involving d₀, d₁ and at the higher energies d₂, d₃, d₄₊₅, d₆] and at 26.0 to 27.5 MeV for reaction (b) [t₀, t₁, t₃]: no structures are observed: see (1981AJ01). See also ¹¹B in (1990AJ01) and (¹⁰B in 1988AJ01).

4. ⁹Be(α, α)⁹Be E_b = 10.6476

A number of excitation functions have been measured for elastically scattered α-particles for E_α = 1.4 to 20 MeV: these show considerable resonance structure with the variations being most prominent below 10 MeV but persisting up to 20 MeV. The parameters resulting from a best-fit of the excitation functions are displayed in 13.8 (in PDF or PS): see the footnotes to that table for a summary of the most important caveats. A weak resonance is observed in the α₀ yield at E_α = 6.44 MeV corresponding to the excitation of the first T = 3/2 state at E_x = 15.11 MeV: see 13.6 (in PDF or PS) for the parameters of that state. For a measurement of the total reaction cross section at E_α = 100 MeV see (1986DU15). See also (1987BU27) and (1986SA30; theor.).

5. ⁹Be(⁶Li, d)¹³C Q_m = 9.1725

Angular distributions have been studied at E(⁶Li) = 32 MeV to ¹³C*(0, 3.09, 3.68 + 3.85, 6.86, 7.5, 9.5, 9.9, 10.75, 13.42). The spectra are dominated by the deuteron group to a state (or states) at E_x = 10.75 ± 0.018 MeV, with Γ = 130 keV [suggesting that both ¹³C*(10.75, 10.82) are populated]. Two states, consistent with ¹³C*(11.35, 12.13) are also populated, as is a broad group at 14.13 MeV (1989AS01; see for spectroscopic factors).

6. ⁹Be(⁷Li, t)¹³C Q_m = 8.1798

Angular distributions for t₀, t₁, t₂₊₃, T₄ are reported at E(⁷Li) = 5.6 to 6.2 MeV: see (1976AJ04).

7. ⁹Be(⁹Be, nα)¹³C Q_m = 9.0741

Cross sections for gamma rays from the decay of ¹³C*(3.09, 3.68, 3.84) are reported by (1988LA25) for E(⁹Be) = 2.8 to 6 MeV.

8. ⁹Be(¹²C, ⁸Be)¹³C Q_m = 3.2810

Angular distributions have been measured for E(¹²C) = 10.5 to 15 MeV and at E(⁹Be) = 20 MeV: (see 1981AJ01, 1986AJ01).

9. (a) ¹⁰B(t, p)¹²B Q_m = 6.342 E_b = 23.8759
(b) ¹⁰B(t, d)¹¹B Q_m = 5.1969
(c) ¹⁰B(t, α)⁹Be Q_m = 13.2282

Yields have been measured for E_t = 0.5 to 2.0 MeV. There is no evidence of resonance behavior: see (1981AJ01). In the range E_t = 3.0 to 7.3 MeV a broad structure is reported in the activation cross section (reaction (a)) at E_t ≈ 5.5 MeV, Γ ≈ 2.7 MeV (1985AB10). See also ⁹Be in (1988AJ01).

10. ¹⁰B(³He, π⁺)¹³C Q_m = -115.711

At E(³He) = 260 and 280 MeV, ¹³C_g.s. and an unresolved group at E_x ≈ 3.6 MeV are observed: see (1986AJ01).

11. ¹⁰B(α, p)¹³C Q_m = 4.0618

Angular distributions have been measured at many energies up to E_α = 31.2 MeV: see (1970AJ04, 1986AJ01). For γ-decay measurements see 13.6 (in PDF or PS). At E_α = 218 MeV, ¹³C*(0, 3.09, 3.7, 6.9, 7.6, 9.9) are populated (1987BI1C; prelim.). For a study of high E_x states see (1987BRZV, 1987MIZY, 1988BRZY; prelim.). See also ¹⁴N, (1989BR1J) and (1986BA58; axion search).

12. ¹⁰B(⁶Li, ³He)¹³C Q_m = 8.0803

Comparisons of the relative intensities of the ³He groups in this reaction and of the triton groups in the mirror reaction (see reaction 6 in ¹³N) at E(⁶Li) = 18 MeV suggest that the following states are analogs: 6.86 - 6.36, 7.49 - 7.16, 9.50 - 9.00, 9.90 - 9.48, (10.82 + 10.75) - (10.36 + 10.36) [the first (set of) E_x is in ¹³C, the second in ¹³N]: see (1981AJ01).

13. ¹⁰B(⁷Li, α)¹³C Q_m = 21.4080

Angular distributions have been measured at E(⁷Li) = 5.20 MeV for the α₀, α₁, α₂₊₃ and α₄ groups: see (1981AJ01).

14. ¹⁰B(¹⁴N, ¹¹C)¹³C Q_m = 1.139

At E(¹⁰B) = 100 MeV angular distributions are reported for the transitions to ¹³C*(0, 3.7, 7.5, 11.8): see (1981AJ01).

15. ¹¹B(d, γ)¹³C Q_m = 18.6790

The 90° γ₀ excitation curve measured for E_d = 1.0 to 12.0 MeV shows resonant structure at E_d = 2.0 ± 0.1 and 4.0 ± 0.1 MeV, Γ ≈ 0.6 and ≈ 1 MeV, corresponding to states at E_x = 20.4 and 22.1 MeV: see 13.9 (in PDF or PS) and (1986AJ01). More recently (1985AU10) have studied the 90° γ₀ differential cross sections at E_{pol. d} = 1.65 to 3.5 MeV, angular distributions at 1.6, 1.8, 2.0 and 4.0 MeV, and analyzing powers at E_{pol. d} = 2.0 and 4.0 MeV (90°) and 1.6 and 1.8 MeV (125°). The data are interpreted in terms of two doorway states at E_x = 20.57 ± 0.84 and 20.20 ± 0.07 MeV with Γ_c.m. = 5.64 ± 0.43 and 0.56 ± 0.09 MeV, respectively (1985AU10). See also reaction 22 and (1990HO06).

16. (a) ¹¹B(d, n)¹²C Q_m = 13.7326 E_b = 18.6790
(b) ¹¹B(d, 2n)¹¹C Q_m = -4.989

The yields of neutron and 15.1 MeV γ-rays have been measured in the range E_d = 0.2 to 11 MeV: see 13.9 (in PDF or PS). At E_{pol. d} = 79 MeV, VAP measurements are reported for ¹²C*(0, 4.4, 9.6, 12.7, 15.1) (1987FO22, 1986FO08). See also (1981AJ01). The thick-target yield in reaction (b) has been measured for E_d = 7.00 to 16.01 MeV: see (1986AJ01). See also ¹²C in (1990AJ01).

17. (a) ¹¹B(d, p)¹²B Q_m = 1.145 E_b = 18.6790
(b) ¹¹B(d, d)¹¹B

For reaction (a) see also (1981AJ01, 1986AJ01). For E_d = 2.99 to 6.99 MeV the activation cross section does not show any evidence of structure (1985AB10). For reaction (b) see (1981AJ01). See also ¹²B in (1990AJ01).

18. ¹¹B(d, α)⁹Be Q_m = 8.0314 E_b = 18.6790

At low energies the excitation functions for α₀ and α₁ increase monotonically: see (1970AJ04). Then at E_d = 1.85 MeV a pronounced resonance is observed in the α₀, α₁, α₂ and α₃ yields: see 13.9 (in PDF or PS). Some gross structure is also observed in these yields for E_d = 1.0 to 3.2 MeV: see (1981AJ01). See also ⁹Be in (1988AJ01).

19. ¹¹B(³He, p)¹³C Q_m = 13.1855

Levels derived from proton groups are displayed in 13.11 (in PDF or PS) of (1981AJ01). [The only level parameters included in the values of 13.4 (in PDF or PS) are E_x = 7500 ± 12 keV and Γ_c.m. < 5, 70 ± 10 and 150 ± 30 keV for ¹³C*(7.49, 7.69, 8.86).] The neutron decays of ¹³C*(6.86, 9.90, 11.75) are to ¹²C_g.s. (99 ± 9)% and (100 ± 20)% for the first two states, and to ¹²C*(0, 4.4) (67 ± 16)% and (33 ± 8)% for the third (1973AD02). The decay parameters for the first T = 3/2 state, ¹³C*(15.11), are shown in 13.6 (in PDF or PS). See also (1986AJ01).

20. ¹¹B(α, d)¹³C Q_m = -5.1677

Angular distributions have been measured at E_α = 15.1 to 31.2 MeV: see (1981AJ01, 1986AJ01). See also (1987BRZV) and (1984BE23; theor.).

21. (a) ¹¹B(⁶Li, α)¹³C Q_m = 17.2040
(b) ¹¹B(⁷Li, ⁵He)¹³C Q_m = 9.06

For reaction (a) see (1981AJ01). For reaction (b) see ⁵He in (1988AJ01) and ( 1990DA03).

22. ¹²C(n, γ)¹³C Q_m = 4.94635

The thermal capture cross section is 3.53 ± 0.07 mb. The capture is (67.47 ± 0.92)%, (0.16 ± 0.01)% and (32.36 ± 0.44)% via ¹³C*(0, 3.09, 3.68): see (1986AJ01) for references and additional information. Based on unpublished measurements quoted in (1986AJ01), the energies of the γ-rays involved in C → 0, C → 3.68 and 3.68 → 0 are 4946.362 ± 0.021, 1261.855 ± 0.006 and 3684.507 ± 0.019 keV. The branching ratios for the decay of ¹³C*(3.68) to ¹³C*(0, 3.09) are (99.3 ± 2.0)% and (0.74 ± 0.05)%, respectively: see (1986AJ01). (1990WA22) proposes 3683.915 ± 0.015 keV for E_γ[3.68 → 0].

Differential cross sections for γ₀ (90°) have been studied for E_n = 6.5 to 18.5 MeV (1987AU02), 7.0 to 19.5 MeV (1986BE17) and at 7.8, 9.3 and 10.8 MeV (1990HA19). Broad structures are seen at ≈ 9 and 17.2 MeV (¹³C*(13.2, 20.8)) [the latter has Γ ≈ 2.5 MeV]. It should be noted that the cross sections reported by (1987AU02) are substantially higher than those reported in the other two references. The variation of the cross section with energy is similar to that from the ¹³C(γ, n₀) reaction but the magnitudes of the cross section are smaller: see, for instance, (1990HA19). Angular distributions and analyzing powers of γ₀ for E_n = 12.0 to 18.8 MeV suggest two doorway states at E_x = 21.1 ± 0.6 and 20.52 ± 0.07 MeV with Γ = 4.2 ± 0.4 and 0.51 ± 0.07 MeV, respectively (1984WO05). See also (1989HU15). For work to 50 MeV see (in 1988DO1E; prelim.). See also (1986MU1B, 1986RA1B, 1986WE1D, 1988MCZT), (1988MA1U, 1989GU1J; astrophysics) and (1987HO23, 1987LY01: theor.).

23. (a) ¹²C(n, n)¹²C Q_m = 4.94635
(b) ¹²C(n, n')¹²C*
(c) ¹²C(n, n')⁴He⁴He⁴He Q_m = -7.27473
(d) ¹²C(n, 2n)¹¹C Q_m = -18.7215

The coherent scattering length (thermal, bound) a_coh = 6.6535 ± 0.0014 fm; σ_scatt = 4.7456 ± 0.0020 (1979KO26).

Total cross sections have been measured in the range E_n = 1 keV to 273 GeV/c [see (1981AJ01, 1986AJ01)] and at 0.14, 1.3 and 2.1 MeV (1988KO18) and 160 to 575 MeV (1988FR23): see the compilation of (1988MCZT). See also (1986BA40). Various elastic, inelastic and non-elastic cross sections have been reported over a wide range of energies: [see (1986AJ01, 1988MCZT)], most recently at 6.23 to 13.75 MeV (1986BO1M; prelim.; elastic and inelastic scattering cross sections), from 16.5 to 22.0 MeV (1989OL02, 1989OL1C; σ_t, σ_el and σ to ¹²C*(4.4, 7.7, 9.6)) and from threshold to 25 MeV (1988WE06; prelim.; cross section for scattering to ¹²C*(4.4)). Polarization measurements have been reported for E_n = 1.5 to 16.3 MeV [see (1976AJ04, 1981AJ01, 1986AJ01)] and at E_n = 15.55 to 17.35 MeV (1987TO03, 1987TO07) and 18.2 MeV (1988TO01). See also (1986BE2D, 1987BEYP).

Observed resonances are displayed in 13.10 (in PDF or PS) here, and in 13.13 (in PDF or PS) in (1981AJ01) [the latter for (n, n'γ_4.4)]. In 13.10 (in PDF or PS) the assignment of the broad states above E_x = 11.7 MeV are from phase-shift analyses (σ(θ) and A_y) referred to here and in (1986AJ01). Five weak anomalies in the total cross section are thought to be due to T = 3/2 states (1987HI03).

For reactions (c) and (d) see reactions 23 and 24 in (1986AJ01) and (1988MCZT). For pion production see (1988BU16). See also ¹²C in (1990AJ01) and (1984BE1L, 1985FI09, 1985KU1F, 1985ME16, 1985RA1E, 1986BAYL, 1986DR10, 1986ROZW, 1987NEZY, 1988AN1F, 1989SA1J), (1986AL1N, 1986WE1B, 1986WI1B, 1989OL1C ; applied), (1988FR1M ; astrophys.), (1987BR06, 1988MA1H) and (1985KO1U, 1985TI07, 1986BE2F, 1986LI16, 1988BA1P, 1988RU1C, 1989MI20, 1990LE1Q; theor.).

24.¹²C(n, p)¹²B Q_m = -12.587 E_b = 4.94635

The cross section exhibits a weak resonance corresponding to E_x ≈ 20.5 MeV and a stronger structure at E_x ≈ 21.5 MeV: see (1976AJ04). See also the compilation of (1988MCZT). The excitation function for E_n = 30 to 150 MeV is being studied (1988RAZX; prelim.). For proton production for E_n = 300 to 580 MeV see (1987FR16). See also ¹²B in (1990AJ01) and (1985AZ1A, 1986FO1E, 1989BE2P, 1989SOZY), (1986RO1F; applied), (1988FR1M; astrophysics), (1988MA1H) and (1986KO26, 1988PE01; theor.).

25. (a) ¹²C(n, d)¹¹B Q_m = -13.7326 E_b = 4.94635
(b) ¹²C(n, t)¹⁰B Q_m = -18.9295

For deuteron and triton emission at E_n = 300 to 580 MeV, see (1987FR16). See also (1986RO1F; applied), (1988FR1M; astrophysics), (1988MA1H) and (1986KO26; theor.).

26. ¹²C(n, α)⁹Be Q_m = -5.7012 E_b = 4.94635

The cross section for the α₀ group shows a broad structure at E_n ≈ 8 MeV: see (1981AJ01). For other work see (1986AJ01, 1988MCZT). See also (1988CA1I), (1986RO1F, 1986WI1B; applied) and (1988MA1H).

27. ¹²C(p, π⁺)¹³C Q_m = -135.4045

Angular distributions have previously been reported for E_p = 147 to 250 MeV: see (1986AJ01). ¹³C*(0, 3.09, 3.68, 3.85, 6.86, 9.50) have been populated. In the more recent work at E_p = 354 MeV it is found that at 21° the π⁺ spectrum is dominated by the group to the (2p1h) 9/2⁺ state at 9.50 MeV. Angular distributions have been measured to ¹³C*(0, 3.09 + 3.68 + 3.85, 9.50) (1987HU08) [see also for a discussion of the energy dependence of the total cross section, and of the influence of the Δ-resonance]. (1987HO21) report a measurement of ground-state differential cross sections at E_p = 186 MeV.

At E_{pol. p} = 200 MeV angular distributions and A_y measurements have been reported to ¹³C*(0, 3.09, 3.7[u], 6.86, 7.5[u], 9.5, 21.4) (1989KO21). For the strongly populated group to ¹³C*(21.4) A_y ≈ 0 at all angles. The results are suggestive of those for a 7/2⁺; T = 3/2 state, but other explanations are also possible (1987KO01, 1989KO21). See also (1990JAZZ). For inclusive differential cross sections and A_y at E_{pol. p} = 400 and 450 MeV see (1986FA03). For other polarization measurements see (1986AJ01). For total cross sections at E_p = 180 and 201 MeV see (1985BI04). See also (1981AJ01), the "General" section, (1987SEZY, 1988SEZT), (1986JA1H) and (1985IQ01, 1986MI09, 1987KU06; theor.).

28. ¹²C(d, p)¹³C Q_m = 2.7218

Measurements of proton groups and γ-rays are summarized in 13.11 (in PDF or PS). Angular distributions have been studied at many energies to E_d = 80.2 MeV [see (1981AJ01, 1986AJ01)] as well as at E_pol.
d = 12 MeV (1988LA03; to ¹³C*(0, 3.09, 3.68, 3.85, 6.86, 7.50, 7.55, 7.69)) and at E_d = 30 MeV (1986OH01; to all even-parity states below E_x = 10 MeV and to ¹³C*(0, 3.68, 7.55, 10.75, 11.08)). See also (1989BE2K, 1989IE01, 1989NA1R).

For τ_m measurements see 13.5 (in PDF or PS) in (1981AJ01) and for γ-decay see 13.6 (in PDF or PS). For work at very high energies see (1987AZ1C, 1989AV02). See also ¹⁴N, (1985LI1H, 1988VI1A, 1989VI1E, 1990CH1J; applied), (1986SI1D; computer program) and (1984BL21, 1986IS1F; theor.).

29. ¹²C(t, d)¹³C Q_m = -1.3109

At E_t = 38 MeV angular distributions have been measured to ¹³C*(0, 3.09, 3.68, 3.85, 6.86, 7.5, 7.69, 8.2, 9.5, 10.7) (1988SI08). See also (1981AJ01).

30. ¹²C(³He, 2p)¹³C Q_m = -2.7718

At E(³pol. He) = 33 MeV ¹³C*(3.85) is strongly populated. ¹³C*(0, 8.0 (broad), 9.5) have also been studied (1986KA44). See also (1981AJ01) and ¹⁵O.

31. ¹²C(α, ³He)¹³C Q_m = -15.6314

Angular distributions of the ³He particles to the first three states of ¹³C have been measured in the range E_α = 56 to 139 MeV. The ground-state distributions in this, and in the mirror reaction ¹²C(α, t)¹³N, have also been compared: see (1981AJ01). See also (1989KU1E; E_α = 94 MeV; g.s.; prelim.) and (1989GA1H).

32. ¹²C(⁷Li, ⁶Li)¹³C Q_m = -2.304

At E(⁷Li) = 34 MeV angular distributions have been studied to ¹³C*(0, 3.09, 3.85). The analysis by FRDWBA leads to S = 0.65 ± 0.06, 0.75 ± 0.08 and 0.68 ± 0.10, respectively (1986CO02). See also (1988KE07; theor.). For the earlier work at E(⁷Li) = 21.1 and E(⁷Li) = 48 MeV see (1981AJ01, 1986AJ01).

33. ¹²C(⁸Li, ⁷Li)¹³C Q_m = 2.9136

At E(⁸Li) = 14.3 MeV, an angular distribution is reported involving ¹³C_g.s. (1989BE28): at θ_lab = 15°, the differential cross section is ≈ 15 mb/sr.

34. ¹²C(¹²C, ¹¹C)¹³C Q_m = -13.7754

Angular distributions have been reported at E(¹²C) = 72.5 and 93.8 MeV [see (1981AJ01, 1986AJ01)], at 240 MeV (1985BO39; ¹³C*(0, 3.85)) and at 300, 420 and 600 MeV (1988WI09, 1989WI07; ¹³C_g.s.). See also ¹¹C in (1990AJ01) and (1989SA44; theor.).

35. ¹²C(¹⁴N, ¹³N)¹³C Q_m = -5.6071

Angular distributions have been reported in the range E(¹⁴N) = 28 to 154.8 MeV involving ¹³C*(0, 3.09, 3.85, 7.3 ± 0.3): see (1981AJ01). See also 1986AJ01) and (1987OS1E, 1988KA27; theor.).

36. (a) ¹²C(¹⁷O, ¹⁶O)¹³C Q_m = 0.8029
(b) ¹²C(¹⁸O, ¹⁷O)¹³C Q_m = -3.0982

Angular distributions involving ¹⁶O_g.s. + ¹³C_g.s. are reported at E(¹⁷O) = 40 to 70 MeV (1986FR04). For the earlier work see (1981AJ01). For reaction (b) see ¹⁸O in (1987AJ02).

37. ¹³B(β^-)¹³C Q_m = 13.437

See ¹³B and 13.2 (in PDF or PS).

38. (a) ¹³C(γ, n)¹²C Q_m = -4.94635
(b) ¹³C(γ, 2n)¹¹C Q_m = -23.668

The main features of the cross sections are a sharp peak corresponding to the T = 3/2 state ¹³C*(15.11) [Γ_γ₀ = 19.7 ± 2.0 eV], the broad pigmy resonance at E_x = 13 MeV [on which peaks are superimposed at E_x = 11.0, 13.8, 16.5 and 17.8 MeV] and the giant resonance at E_x = 24 MeV (σ_max = 9.5 mb) [surrounded by shoulder resonances at E_x = 20.8 and ≈ 30 MeV, both of which appear to decay substantially to highly excited states of ¹²C]. There is also some evidence for a weak resonance at ≈ 37 MeV superimposed on the high-energy tail of the GDR. A study of the angular distributions of n₀ suggests states at E_x = 7.70 (3/2⁺), 7.95 (3/2⁺), 8.95((1/2^-)), 10.0 ((3/2^-)), 11.0 ((1/2⁺)) and 12.05 MeV ((3/2⁺)). See (1981AJ01) for references and for additional information. See also the atlas in (1988DI02), (1985PY01, 1988BE1T, 1988HA12) and (1985GO1A, 1987KI1C; theor.). For comparisons with ¹²C(n, γ) see reaction 22 and (1985AU10, 1986BE17).

39. (a) ¹³C(γ, p)¹²B Q_m = -17.533
(b) ¹³C(γ, d)¹¹B Q_m = -18.6790

The integrated cross section (reaction (a)) from E_γ = 17.5 (threshold) to 28 MeV is 36 ± 5 MeV · mb. Resonances are observed at E_x = 18.6, (19.7), 20.7, (22), 23.5, 24.5 and (26) MeV. [σ_max at E_x ≈ 23 MeV is 8 mb]. Below ≈ 18 MeV the cross section is dominated by transitions involving T_< states. The states at 18.6 and 20.7 MeV have a significant T_> component. The two isospin components of the GDR appear to be split by 6.8 MeV (1983ZU02). For the earlier work see (1981AJ01). See also (1988HA12) and (1987KI1C; theor.). For the cross section of reaction (b) from detailed balance calculations from ¹¹B(d, γ) see reaction 15 and (1985AU10).

40. ¹³C(e, e)¹³C

The elastic scattering has been studied for E_e = 80 to 750 MeV [see (1981AJ01, 1986AJ01)] and (1987HI09, 1989MI01). The form factor for M1 elastic scattering is enhanced above q ≈ 2.5 fm^-1 (1982HI07, 1987HI09). See also (1987DE43). A number of inelastic groups have been seen: see 13.12 (in PDF or PS) and 13.13 (in PDF or PS) (1970WI04, 1986HI06, 1987HI09, 1989MI01).

A distinct splitting of the giant resonance into two large peaks near E_x = 20.5 and 24.5 MeV, with widths of ≈ 3 and ≈ 4 MeV, respectively, is observed. It is suggested that these are groupings of narrower peaks. The E_x = 20.5 and 24.5 MeV groups are probably T = 1/2 and T = 3/2, although the 4 MeV splitting is somewhat smaller than expected: see (1981AJ01). See also (1984CH1K, 1985SA06, 1986CH2E, 1986DO11, 1987HO23, 1988MI1J, 1989AM02, 1989WO1E, 1990JE1B; theor.).

41. ¹³C(π^±, π^±)¹³C

Angular distributions have been measured at E_π = 20 to 180 MeV [see (1981AJ01) and 13.13 (in PDF or PS) in (1986AJ01)], at 65 MeV (1988MI02; several states up to E_x = 11.8 MeV) and at E_π^- = 30 and 50 MeV (1990SE04; elastic). Enhanced in π^- scattering are ¹³C*(0, 3.09, 3.85, 9.50, 21.60 ± 0.05), the latter very strongly but with a large uncertainty. Enhanced in π⁺ scattering are ¹³C*(3.68, 7.55, 8.86, 11.82, 16.05 ± 0.05, 17.92 ± 0.05, 21.37 ± 0.05). The data for ¹³C*(9.50, 21.60, 16.05, 21.37) indicate pure neutron particle-hole excitations for the first two states and pure proton excitation for the latter two, however with large uncertainties except for ¹³C*(9.5). Spin assignments are 9/2⁺ for ¹³C*(9.50); 7/2⁺ or 9/2⁺ for ¹³C*(16.05, 17.92, 21.37, 21.60); 5/2⁺ and/or 7/2⁺ for ¹³C(11.82) [unresolved doublet?]. The π^-/π⁺ asymmetry near 21.5 MeV suggests that there is isospin mixing between T = 1/2 and 3/2 states of J^π = 7/2⁺ and/or 9/2⁺ (1982SE04, 1983SE15). Analyzing powers for elastic scattering on pol. ¹³C have been studied at E_π^± = 100 MeV (1990SM1B) and 114 to 226 MeV (1990YE1C) [both preliminary]. See also the "General" section and (1986AMZX; theor.).

42. ¹³C(n, n)¹³C

Angular distributions have been measured at E_n = 4.5 to 17.92 MeV [see (1986AJ01)], at 4.55 to 10.99 MeV (1989RE01, n₀ → n₃) and at 24 MeV (1985PE10; n₀). At E_n = 8.1 to 11 MeV ¹³C*(7.55) [J^π = 5/2^-] is involved in the sequential decay to ¹²C_g.s. (1987RE01). See also ¹⁴C, (1988RE09; computer) and (1986AL1L; theor.).

43. ¹³C(p, p)¹³C

Angular distributions have been studied at E_p = 1.37 MeV to 1 GeV [see (1981AJ01, 1986AJ01)] and at 30.95 MeV (1988BA30; p₀), 35 MeV (1986OH03: p₀ → p₃), 71.8 MeV (1989VO05, 1990VO02; p₀; polarized protons), 135 MeV (1988CO05, to 33 states below E_x = 23 MeV), 500 MeV (1990HO06; p₀; polarized protons), 0.8 GeV (1985BL22; p₀) and 1 GeV (1985AL16; p₀). (1988CO05) assign 7/2⁺ for ¹³C*(11.85) [in agreement with the (e, e) work]. (5/2⁺) for ¹³C*(11.95, 14.98), ≤ 5/2 for ¹³C*(12.11, 12.19), (7/2, 9/2)⁺ for ¹³C*(14.58, 21.47), (7/2⁺) for ¹³C*(16.08), (3/2, 5/2) for ¹³C*(17.70), (3/2, 5/2)⁺ for ¹³C*(18.70), (7/2, 9/2)⁺ for ¹³C*(21.47), ≥ 5/2 for ¹³C*(21.81) and ≤ 5/2 for ¹³C*(22.2, 23). The widths of ¹³C*(12.19 ± 0.01, 22.2 ± 0.1) are 110 ± 50 keV and 1100 ± 500 keV, respectively. [The widths for ¹³C*(11.95, 12.11, 12.19) are appreciably smaller than those reported in 13.10. (in PDF or PS)] A state at E_x = 20.93 ± 0.1 MeV with Γ = 240 ± 100 keV is suggested (1988CO05, S. Collins, Ph.D. thesis, and B. Spicer, private communication). See also ¹⁴N, (1985PE10) and (1986AMZX, 1986RA05, 1987BE1M, 1987BE1P, 1988GOZH, 1988RA08, 1989AM02, 1989AM05, 1989BEXT, 1989GO14, 1989KU14, 1989KU32, 1989RA1O, 1990DU01; theor.).

44. (a) ¹³C(d, d)¹³C
(b) ¹³C(t, t)¹³C

Angular distributions (reaction (a)) have been measured at E_d = 0.71 to 56 MeV: see (1981AJ01, 1986AJ01). See also ¹⁵N. Angular distributions for the tritons to ¹³C*(0, 3.09, 3.68, 3.85, 7.55) have been studied at E_t = 38 MeV (1988SI08). See also (1981AJ01).

45. ¹³C(³He, ³He)¹³C

Angular distributions of elastically scattered ³He ions have been studied at E(³He) = 12 to 41 MeV [see (1981AJ01)] and at 39.6 MeV (1987BUZR; prelim.) as well as at E(³He) = 33 MeV (1986DR03). Angular distributions have also been reported at E(³He) = 43.6 MeV for the ³He ions to ¹³C*(3.09, 3.68, 3.85, 6.86, 7.49 + 7.55, 7.69, 8.86, 9.50, 9.90, 10.75 + 10.82, 11.08, 11.85, 15.11, 16.0) [and these have been compared to the analog states reached in the ¹³C(³He, t)¹³N reaction] (1981PE08). See also (1989DE1Q) and (1986ZE04, 1987RA36; theor.).

46. ¹³C(α, α)¹³C

Angular distributions have been studied at E_α = 15 to 40.5 MeV [see (1981AJ01)], at E_α = 35.5 MeV (1981PE08; to ¹³C*(3.09, 3.68, 3.85, 6.86, 7.49 + 7.55, 7.69, 8.86, 9.50, 11.08, 11.85)) as well as at E_α = 48.7 and 54.1 MeV (1987AB03; α₀). For ¹³C*(7.69), E_x = 7686 ± 6 keV, Γ_c.m. = 70 ± 5 keV (1980FU04; also line shapes). An angular correlation study at E_α = 24.35 MeV of the (α, αn) reaction to ¹²C_g.s. has determined the substate population of ¹³C*(6.86), J^π = 5/2⁺ (1984DE44). Γ_γ/Γ ≤ 3 × 10^-4 for ¹³C*(6.86). The evidence for states near 7.5 MeV is less clear cut (1985DE11). See also (1987BU27) and (1985SH1D; theor.).

47. (a) ¹³C(⁶Li, ⁶Li)¹³C
(b) ¹³C(⁷Li, ⁷Li)¹³C

Angular distributions of elastically scattered Li ions have been studied at E(Li) = 4.5 to 40 MeV [see (1981AJ01, 1986AJ01)] as well as at E(⁷Li) = 34 MeV (1987CO02, 1987CO16). At E(⁷Li) = 34 MeV angular distributions involving ¹³C*(3.09, 3.68, 7.55) are also reported (1987CO02). For the (⁶Li, αd) breakup via states of ¹⁷O see (1986AJ01) and (1987CA30, 1989WUZX). For fusion and breakup cross sections see (1986AJ01). See also (1989DE34) and (1988DEZU, 1988DE1F; theor.).

48. ¹³C(⁹Be, ⁹Be)¹³C

The elastic scattering has been studied at E(¹³C) = 28.1 and 36.2 MeV [see (1981AJ01)] and at E(⁹Be) = 50.5 MeV (1990BA16; also to ¹³C*(3.68, 7.55)). For cross section measurements see (1984DA17, 1986CU02). See also (1986MI24; theor.).

49. (a) ¹³C(¹⁰B, ¹⁰B)¹³C
(b) ¹³C(¹¹B, ¹¹B)¹³C

Elastic angular distributions have been measured at E(¹⁰B) = 18 to 80.9 MeV: see (1986AJ01). For fusion and other cross section measurements see (1986AJ01) and (1988MA07). See also (1985CU1A).

50. (a) ¹³C(¹²C, ¹²C)¹³C
(b) ¹³C(¹³C, ¹³C)¹³C
(c) ¹³C(¹⁴C, ¹⁴C)¹³C

Angular distributions for reaction (a) have been reported for E(¹²C) = 10 to 87 MeV and E(¹³C) = 12 to 36 MeV [see (1981AJ01, 1986AJ01)], and at E(¹²C) = 94.5 MeV (and 1986BA80; elastic) and E(¹³C) = 16.3 to 26.5 MeV (and 1988VO01; ¹³C*(0, 3.09, 3.85)) and 260 MeV (and 1985BO39; ¹³C_g.s. + ¹²C*(0, 4.4)). Elastic distributions for reaction (b) have been studied at E(¹³C) = 15 to 24 MeV [see (1981AJ01)] and at 14 and 16 MeV and (1988TR01). Angular distributions for reaction (c) have been measured at E(¹³C) = 15 MeV [see (1981AJ01)] and at 20 to 27.5 MeV (and 1988BI11; ¹³C(0, 3.09, 3.85)). For excitation functions, fusion and evaporation cross sections see (1986AJ01) and (and 1986HA30, and 1988TR01). For a spin-flip probability study see (1985BY01) and ¹²C in (1990AJ01).

51. (a) ¹³C(¹⁴N, ¹⁴N)¹³C
(b) ¹³C(¹⁵N, ¹⁵N)¹³C

Elastic angular distributions have been measured at E(¹⁴N) = 19.3 to 35 MeV and at E(¹³C) = 105 MeV: see (1981AJ01, 1986AJ01). See also (1989BEZC: γ-ray yields, reaction (b)) and (1986BA69; theor.).

52. (a) ¹³C(¹⁶O, ¹⁶O)¹³C
(b) ¹³C(¹⁷O, ¹⁷O)¹³
(c) ¹³C(¹⁸O, ¹⁸O)¹³C

Elastic angular distributions have been measured for reaction (a) at E(¹⁶O) = 10 to 30 MeV and at E(¹³C) = 36 and 105 MeV [see (1981AJ01)] as well as at E(¹⁶O) = 42 to 65 MeV (1989FR04) and at 108.15 MeV (1986BA80). Those for reaction (b) are reported at E(¹⁷O) = 29.8, 85.4, 120 and 140 MeV; and those for reaction (c) at E(¹⁸O) = 15 to 31 MeV: see (1981AJ01, 1986AJ01). For excitation functions, breakup yields and fusion measurements see (1981AJ01, 1986AJ01) and (1983FR17 [see, however, (1988FR15)], 1985BE40, 1985BE37, 1986GA13, 1986PA10). See also (1985CU1A, 1985HU04, 1985KO1J, 1985RE1C, 1986ST1A, 1989BEZC, 1990SN1A) and (1985MI13, 1986BA69, 1986CI01, 1986MI1A, 1986PA04, 1987AR13, 1987BA01, 1987MO27, 1987DA34, 1987NU02, 1987RE1C, 1989CH2B, 1989TH1A, 1990IM01; theor.).

53. ¹³C(²⁴Mg, ²⁴Mg)¹³C

See (1986AJ01) and (1986OS05; theor.).

54. (a) ¹³C(²⁷Al, ²⁷Al)¹³C
(b) ¹³C(²⁸Si, ²⁸Si)¹³C

For reaction (a) see (1988SN1A). The elastic angular distribution for reaction (b) has been studied at E(¹³C) = 60 MeV (1988YA06). For the earlier work see (1981AJ01, 1986AJ01). See also (1989CH1K; theor.).

55. (a) ¹³C(³²S, ³²S)¹³C
(b) ¹³C(⁴⁰Ar, ⁴⁰Ar)¹³C

For reaction (a) see (1990ME07); for (b) see (1988GO12, (1989RA1K). See also (1986AJ01).

56. (a) ¹³C(⁴⁰Ca, ⁴⁰Ca)¹³C
(b) ¹³C(⁴⁸Ca, ⁴⁸Ca)¹³C

See (1981AJ01, 1986AJ01) and (1985EL07, 1986OS05; theor.).

57. ¹³N(β⁺)¹³C Q_m = 2.2205

See ¹³N.

58. ¹⁴C(γ, n)¹³C Q_m = -8.1765

See ¹⁴C and (1985PY01). See also (1987GO09; theor.).

59. (a) ¹⁴C(p, d)¹³C Q_m = -5.9519
(b) ¹⁴C(d, t)¹³C Q_m = -1.9192
(c) ¹⁴C(³He, α)¹³C Q_m = 12.4013

At E_p = 35.0 and 40.1 MeV angular distributions (reaction (a)) have been reported [and integrated cross sections and spectroscopic factors have been derived] for the deuterons to the 1/2^- states ¹³C*(0, 8.86, 11.08), the 3/2^- states ¹³C*(3.68, 9.90, 11.75, (13.28), 15.11), the 5/2⁺ states ¹³C*(3.85, 6.86), the 1/2⁺ states ¹³C*(3.09, 11.0), the 3/2⁺ states ¹³C*(7.69, 8.2), ¹³C*(7.5) [J^π = 5/2^-] and ¹³C*(9.50) [9/2⁺] (1990YA01). See also (1981AJ01).

60. ¹⁴N(γ, p)¹³C Q_m = -7.5506

Angular distributions measured in the giant resonance region of ¹⁴N are consistent with the proton decay of (p_1/2)^-1 (2s1d) giant dipole states to ¹³C_g.s. and of (p_3/2)^-1 (2s1d) states to ¹³C*(3.68). The population of ¹³C*(3.09, 3.85) is also reported. For E_b.s. = 15.5 to 29.5 MeV a large fraction of the neutron yield appears to be associated with sequential decay to ¹²C via ¹³C*(7.75, 8.86, 11.80): see (1981AJ01). See also ¹⁴N.

61. ¹⁴N(n, d)¹³C Q_m = -5.3260

Angular distributions have been determined at E_n = 10.1 to 14.7 MeV: see (1981AJ01). See also (1988YOZX; E_n = 60 MeV; prelim.).

62. ¹⁴N(p, 2p)¹³C Q_m = -7.5506

At E_p = 46 MeV, the summed proton spectrum shows transitions to ¹³C*(0, 3.68, 7.5, 11.9): see (1981AJ01). At E_p = 50 MeV ¹³C*(0, 3.1, 3.7) are populated (1984VD02, 1986VDZY). See also (1987VD1A).

63. ¹⁴N(d, ³He)¹³C Q_m = -2.0571

At E_d = 52 MeV, angular distributions have been measured for the ³He particles to ¹³C*(0, 3.09, 3.68, 6.86, 7.5, 8.86, 9.50, 11.9 ± 0.15) and analysed by DWBA: J^π = 5/2^-, 1/2^-, 3/2^- and 3/2^-, respectively, are assigned to ¹³C*(7.5, 8.86, 9.50, 11.9). [However, ¹³C*(9.50) is known to have J^π = 9/2⁺.] As expected, angular distributions of ³He and of tritons (from ¹⁴N(d, t)¹³N) to analog states are closely the same: this has been shown for the ground-state ³He and triton groups as well as groups to ¹³C*(8.9 + 9.5) and ¹³N*(9.2): see (1981AJ01).

64. ¹⁴N(t, α)¹³C Q_m = 12.2634

Observed α groups at E_t = 2.6 MeV are displayed in 13.22 (in PDF or PS) of (1976AJ04).

65. ¹⁴N(⁶Li, ⁷Be)¹³C Q_m = -1.945

See (1981AJ01, 1986AJ01).

66. ¹⁴N(¹⁰B, ¹¹C)¹³C Q_m = 1.1390

See (1987OS1E; theor.).

67. ¹⁵N(p, ³He)¹³C Q_m = -10.6658

At E_p = 43.7 MeV ³He groups have been observed to eleven states of ¹³C: see 13.17 (in PDF or PS) in (1981AJ01).

68. ¹⁵N(α, ⁶Li)¹³C Q_m = -14.6843

At E_α = 42 MeV the angular distribution to ¹³C_g.s. has been measured: see (1981AJ01). See also (1988SH1E; theor.).

69. ¹⁶O(n, α)¹³C Q_m = 2.2156

Angular distributions have been measured for E_n to 18.8 MeV for α₀, α₁, α₂₊₃: see (1981AJ01). See also (1987MA1C; astrophysics).

70. ¹⁶O(α, ⁷Be)¹³C Q_m = -21.2061

At E_α = 42 MeV the angular distributions involving ¹³C_g.s. have been measured: see (1981AJ01).

71. ¹⁶O(⁹Be, ¹²C)¹³C Q_m = 3.4856

Angular distributions are reported at E(¹⁶O) = 20.0 to 28.3 MeV to ¹³C*(0, 3.09, 3.85) (1988WE17). See also (1989VO1D).

72. (a) ¹⁸O(d, ⁷Li)¹³C Q_m = -5.678
(b) ¹⁹F(d, ⁸Be)¹³C Q_m = 3.5817

Angular distributions have been measured in both reactions at E_d = 13.6 MeV involving ¹³C_g.s.: see (1986AJ01).

73. ²³Na(d, ¹²C)¹³C Q_m = 0.4785

At E_d = 13.6 MeV an angular distribution has been reported by (1986GO26).