A=13N (1976AJ04)

Measured values of the half-life are displayed in Table 13.22 (in PDF or PS) of (1970AJ04): the weighted mean value of τ_1/2 = 9.961 ± 0.004 min. The decay is entirely to ¹³C_g.s.: log ft = 3.643 ± 0.001 (1974WI1M). The positrons are completely polarized: see (1970AJ04). See (1969BA1M, 1972KO1A, 1974UL1B) for astrophys. considerations. See also (1972CH1G) and (1970DA21, 1970KO41, 1970PA23, 1970ST04, 1971BL12, 1971LI1H, 1971VA1C, 1971WI18, 1972WI28, 1972WI1C, 1973EM1B, 1973MU1D, 1973SA25, 1973WI04, 1973WI11, 1974LE1G, 1975KR14, 1975ME24, 1975WI1E; theor.).

2. ⁹Be(⁶Li, 2n)¹³N Q_m = 3.947

See (1957NO17).

3. ¹⁰B(³He, γ)¹³N Q_m = 21.638

The 90° γ₀ cross section has been measured for E(³He) = 4.8 to 14 MeV: it is typically 40 nb/sr and does not show any pronounced structure. In the same energy interval to 90° cross section for γ_3.5 decreases monotonically from ≈ 500 nb/sr to ≈ 100 nb/sr. Capture transitions to ¹³N*(7.25 ± 0.15, 9.8 ± 0.3) may also have been observed (1972BE05).

4. ¹⁰B(³He, n)¹²N Q_m = 1.569 E_b = 21.638

The activation cross section has been measured for E(³He) = 1 to 6.3 MeV (1963PE10) and 6 to 30.6 MeV (1970SI16). See also (1971ADZZ). There is some evidence of broad structures. See also ¹²N in (1975AJ02).

5. ¹⁰B(³He, p)¹²C Q_m = 19.6948 E_b = 21.638

Observed resonances in the yields of proton groups and γ-rays are displayed in Table 13.24 (in PDF or PS). Recent measurements have been carried out at E(³He) = 11.6 to 18.6 MeV (1972BE56; p₀, p₁) [no indication of resonances] and E(³He) = 4 to 17 MeV (γ_15.1) and 5 to 12 MeV (γ_12.7) (1972BE05) [some indication in the 90° yield of both γ for the population of ¹³N*(26., 28.)]. See also (1970BE1F), (1970AJ04) and ¹²C in (1975AJ02).

6. ¹⁰B(³He, d)¹¹C Q_m = 3.198 E_b = 21.638

Excitation functions have been measured for E(³He) = 3.5 to 10 MeV (1965PA10; d₀) and 11 to 19 MeV (1972BE56; d₀ → d₃, d₄₊₅). Resonances are reported in the d₀ yield at E(³He) = 5.8 MeV and in the 150° d₄₊₅ yield at 13.6 MeV [¹³N*(26, 32)]: see Table 13.24 (in PDF or PS). See also (1970BE1F) and ¹¹C in (1975AJ02).

7. ¹⁰B(³He, t)¹⁰C Q_m = -3.669 E_b = 21.638

The excitation function for ¹⁰C production has been measured from threshold to E(³He) = 10.5 MeV: no detailed structure is observed (1964OS1A).

8. ¹⁰B(³He, ³He)¹⁰B Q_m = 21.638

See (1970DU07) and ¹⁰B in (1974AJ01).

9. ¹⁰B(³He, α)⁹B Q_m = 12.143 E_b = 21.638

Excitation functions for α₀ and α₁ have been measured for E(³He) = 2 to 10 MeV (1965PA05) and 9 to 19 MeV (1972BE56). Strong resonances are observed at E(³He) = 5.8 MeV (α₀) and ≈ 13.3 MeV (α₁ at 150°): see Table 13.24 (in PDF or PS). See also (1970BE1F, 1970GI04) and ⁹B in (1974AJ01).

10. ¹⁰B(α, n)¹³N Q_m = 1.060

Angular distributions have been measured for E_α = 1.5 to 4.6 MeV (n₀) and at ≈ 4.6 MeV (n₁, n₂₊₃) (1973VA25). See also ¹⁴N, (1975WI04) and (1970AJ04).

11. ¹⁰B(⁶Li, t)¹³N Q_m = 5.844

At E(⁶Li) = 18 MeV the known states of ¹³N with 6.3 < E_x < 11.7 MeV are observed, with the exception of ¹³N*(8.0, 8.92). In addition, evidence is presented for a new ¹³N state at E_x = 9.00 MeV with Γ_cm = 280 ± 30 keV: it is very strongly excited and its angular distribution is similar to that for ¹³C*(9.50) in the mirror reaction (⁶Li, ³He) suggesting that these two states are analogs. Other analog assignments made on the basis of corresponding intensities in the mirror reaction are given in reaction 15 of ¹³C. The widths of ¹³N*(6.89, 7.38) are, respectively, 120 ± 30 and 70 ± 30 keV (1974HO06). See also (1970AJ04).

12. ¹⁰B(¹⁴N, ¹¹B)¹³N Q_m = 0.902

At E(¹⁰B) = 100 MeV, angular distributions are reported for the transitions to ¹³N*(0, 3.5, 7.4, 11.9) (1975NA15). See also (1970GO1B) and (1970SC1G, 1972AN25, 1973MC17, 1973OS03, 1975OS01; theor.).

13. ¹¹B(³He, n)¹³N Q_m = 10.182

Neutron groups have been observed to a number of states in ¹³N: see Table 13.25 (in PDF or PS) (1969AD02, 1971HS03). The gamma, proton and α-widths of the first T = 3/2 state at E_x = 15.07 MeV are displayed in Table 13.7 (in PDF or PS) where they are compared with the corresponding quantities for ¹³C*(15.11) (1973AD02, 1975MA21). Branching ratios of 0.096 ± 0.014 and 0.164 ± 0.036 are obtained for the proton decay of ¹³N*(15.07) to ¹²C*(9.6, 10.8), respectively: these values suggest the importance of 2s-1d shell isospin admixtures in ¹³N*(15.07) (1974AD1D). [See ¹³N, reaction 11 in (1970AJ04) for the earlier work.] See also (1970GO23).

14. ¹¹B(¹¹B, ⁹Li)¹³N Q_m = -12.976

See (1974AN36).

15. (a) ¹²C(p, γ)¹³N Q_m = 1.944
(b) ¹²C(p, p'γ)¹²C

Resonances for capture radiation are displayed in Table 13.26 (in PDF or PS). [See also Table 13.6 (in PDF or PS) for a summary of the total raditation widths of the low-lying levels of ¹³C - ¹³N.] No resonance is observed at E_p = 1.73 MeV corresponding to ¹³N*(3.55): ωΓ_γ < 0.006 eV (1963YO06).

Excitation functions have been measured for E_p = 150 to 2500 keV. In addition to the two resonances at E_p = 0.46 and 1.70 MeV, direct radiative capture is observed. From the cross section for that process C²S (l = 1) is determined to be 0.49 ± 0.15 for the 1/2^- ¹³N_g.s.. In reaction (b), studied for E_p = 610 to 2700 keV the capture γ-ray yield is dominated by a direct capture process to ¹³N*(2.37): C²S (l = 0) = 1.02 ± 0.15. The cascade decay ¹³N*(3.51 → 2.37) has an intensity of 8 ± 1% (1974RO29). Extrapolating the cross section to E_cm = 25 keV yeilds a cross section factor S = 1.45 ± 0.20 keV · b (1974RO29). For other discussions of astrophysical questions see (1971BA1A, 1972CA1N, 1973CL1E, 1973SM1D, 1973TR1E, 1973TR1B).

There have been a number of measurements of the width of ¹³N*(2.37) in this and in other reactions and suggestions have been made that the width may be reaction dependent: we refer the reader to p.1327 of (1974BL06) for an excellent discussion of this question. It appears that there is no reaction dependence and that the apparent discrepancies arise from questions of detector efficiency, background subtraction and penetrability variations. For the values for Γ reported in this reaction see Table 13.26 (in PDF or PS).

At E_p = 14.2 MeV, capture radiation from the first T = 3/2 state, ¹³N*(15.07), is reported: Γ_pΓ_γ₀/Γ = 5.79 ± 0.20 eV which, combined with Γ_p/Γ = 0.20 ± 0.025 from (1969AD01) yields Γ_γ = 24.5 ± 1.5 eV. The amplitude ratio of E2/M1 = 0.013 ± 0.005. For the transitions to ¹³N*(2.37, 3.51 + 3.55), Γ_γ < 2.8 ± 0.3 and 19.6 ± 1.4 eV, respectively (1975MA21). The angular distributions of the γ-rays determine J = 3/2 for ¹³N*(15.07) (1968DI04): see Table 13.7 (in PDF or PS).

See also (1973RO1U, 1975CR06, 1975NA1C, 1975SW1C), (1973SU1E), (1968SE1A, 1973EI1B, 1974KI03, 1974RO1T; theor.), (1974LO1G; applied) and (1970AJ04).

16. (a) ¹²C(p, p)¹²C E_b = 1.944
(b) ¹²C(p, 2p)¹¹B Q_m = -15.9572
(c) ¹²C(p, pα)⁸Be Q_m = -7.367

Yield curves for elastic protons, protons inelastically scattered to ¹²C*(4.4, 7.7, 9.6, 12.7, 15.1), and for γ-rays from ¹²C*(12.7, 15.1) have been studied at many energies up to E_p = 48.5 MeV: see Table 13.27 (in PDF or PS) for a display of the characteristics of the observed structure. The excitation functions of p₀, p₁ and α₀ have been measured in the region of the T = 3/2 state at E_x = 15.07 MeV: Γ = 1.10 ± 0.09 keV, Γ_p = 210 ± 11 eV, Γ_p/Γ = 0.191 ± 0.017 (1975HI07): see Table 13.7 (in PDF or PS).

Total reaction cross section measurements have been made at E_p = 9.88 to 19.46 MeV (1970DI08), 22 to 35 MeV (1975SL02), 23.2 to 47.7 MeV (1969MC1A, 1974MC19), 30, 40, 49.5 and 60.8 MeV (1971ME09), 180 to 560 MeV (1972SC1M) and 231, 345, 464 and 552 MeV (1972RE06). The nuclear absorption cross section for p to p-bar has been studied at 6 to 60 GeV/c (1973GO41). See (1970AJ04) for a listing of the earlier measurements in the range 10 MeV to 1 GeV. See also ¹²C in (1975AJ02).

Spin-flip measurements have been carried out at E_p = 5.2 to 6 MeV (1973SA1N), 7.0 to 8.0 MeV (1973BE37), 8.0 to 8.3 and 8.9 to 9.4 MeV (1972BE15, 1974MU1G, 1976SO02), 12 to 14 MeV (1970KO15), 12 to 15 MeV and at 20 MeV (1969KO07) and 15.9 to 35.3 MeV (1975DE32): the absolute values of the spin-flip probabilities show pronounced structure at ≈ 20 and 29 MeV, suggesting giant resonance effects. See also ¹²C in (1968AJ02). Polarization measurements have been carried out for E_p = 0.5 MeV to 3.6 GeV: see Table 13.26 (in PDF or PS) in (1970AJ04) and Table 13.28 (in PDF or PS) here.

See also (1969RE1A, 1970TS03, 1971CR1A, 1973BI1H), (1971PL1C), (1975ME1E; astrophys.) and (1970SH01, 1971CH01, 1972DE13, 1972SI19, 1973ME1J, 1973MO1E, 1974IN04; theor.).

For reaction (b) see (1970AJ04), ¹¹B in (1975AJ02) and (1975ME1E; astrophys.). For reaction (c) see (1972MA62) and ⁸Be in (1974AJ01).

For spallation studies see (1969AZ03, 1969DA1D, 1969EP1B, 1970DA30, 1970JU05, 1971FO06, 1972AL1K, 1973BA81, 1973BE36, 1973KR09, 1974BE65, 1975RA14, 1976EDZZ, 1976KO03). See also (1968ED1A, 1970KO25, 1973BA1M, 1973RO1V, 1974CL1G, 1974KO1V) and (1970SC1F; theor.).

17. (a) ¹²C(p, n)¹²N Q_m = -18.126 E_b = 1.944
(b) ¹²C(p, pn)¹¹C Q_m = -18.722

The cross section for reaction (a) has been measured from threshold to E_p = 50 MeV. Resonant structure is observed corresponding to E_x = 21, 24 and, possibly ≈ 27 MeV (1968RI01). See also (1970AM1A, 1971JU05), (1974RE1B; theor.) and ¹²N in (1975AJ02).

Cross sections for reaction (b) have been measured to E_p = 385 MeV (see (1970AJ04)), at 450 MeV (1972WA30), at 7.6 GeV (1972BU31) and at 300 GeV (1976KA01). See also (1970DA26, 1970VA1K, 1971DE18, 1973SK1B, 1973WA1G) and (1972DA09; theor.).

18. (a) ¹²C(p, d)¹¹C Q_m = -16.497 E_b = 1.944
(b) ¹²C(p, t)¹⁰C Q_m = -23.364
(c) ¹²C(p, ³He)¹⁰B Q_m = -19.6948

For polarization measurements (reaction (a)) see (1970AJ04). See also (1973TA27, 1974IN07, 1974RE1B; theor.) and ¹¹C in (1975AJ02).

Polarization measurments involving the t₀ and t₁ groups have been carried out at E_p = 49.5 MeV (1970NE17). See also ¹⁰B and ¹⁰C in (1974AJ01) and (1974RE1B; theor.).

19. ¹²C(p, α)⁹B Q_m = -7.551 E_b = 1.944

Yield curves for α₀ have been measured over the 14.2 MeV resonance, corresponding to the first T = 3/2 state at E_x = 15.07 MeV, and from E_p = 17 to 20 MeV. The yield for the α₁ group has been determined for E_p = 17 to 21.5 MeV. Parameters of observed resonances are displayed in Table 13.27 (in PDF or PS) (1969LE18, 1975HI07). Excitation functions for α₀ have also been measured for E_p = 18.5 to 44 MeV at a number of angles: they exhibit structures which are typically 1 MeV broad (1971GU23). See also (1969KO1D), (1974RE1B; theor.) and ⁹B in (1974AJ01).

20. ¹²C(p, ⁶Li)⁷Be Q_m = -22.569 E_b = 1.944

Excitation functions have been measured for E_p = 36 to 43 MeV: no structure is apparent (1971HO25). See also (1975FU01) and (1974RE1B; theor.).

21. (a) ¹²C(d, n)¹³N Q_m = -0.281
(b) ¹²C(d, pn)¹²C Q_m = -2.2246

Measurements of angular distributions of neutrons are tabulated in Table 13.27 (in PDF or PS) of (1970AJ04). Recent measurements are by (1972DA02: 7.0 → 12.0 MeV; n₀), (1971MU18: 11.8 MeV; n₀, n₁ n₂₊₃) and (1970GA07: 12, 15, 17 MeV; angular distributions of recoils in coincidence with n₀). Forward differential cross sections have been measured by (1972DU01) at 1.69 GeV/c. The cm width of ¹³N*(2.37) is reported by (1973CL04) as 36.15 ± 0.54 keV: see, however, the discussion in (1974BL06, 1975BO32) and in reaction 15 here; the neutron group to ¹³N*(2.37) shows a pronounced asymmetry (1975BO32). See also ¹⁴N, (1974MA1T, 1975BO35), (1969PH1B), (1970BO1K, 1972PE11, 1974BO53, 1975BO1W; theor.) and (1970DA1F, 1973WE19; applied).

Reaction (b) is dominated at E_d = 5.0 to 6.5 MeV and at 9.20 and 9.85 MeV by sequential decay via ¹³N*(3.51 + 3.55). At lower energies ¹³N*(2.37) participates also: see (1972VA10, 1972LA03, 1970SA1K, 1972GE1G, 1973SA03, 1973SH04). See also (1972BE54; theor.) and (1970AJ04).

22. (a) ¹²C(³He, d)¹³N Q_m = -3.550
(b) ¹²C(³He, pd)¹²C Q_m = -5.4938

Angular distributions have been studied to the first eight states of ¹³N at E(³He) up to 29 MeV: see (1970AJ04) for a listing of the earlier work and (1971CO07: 21 MeV; d₀), (1971ST21: 40 MeV; d₀, d₂₊₃). The energies and widths of the first three excited states are E_x = 2368.2 ± 2.8, 3507.8 ± 7.6 and 3549.1 ± 5.0 keV, with Γ_cm = 36.1 ± 2.8, 54.8 ± 11.5 and 46.5 ± 7.1 keV, respectively (1974BL06). See also (1970BO1K; theor.).

23. ¹²C(α, t)¹³N Q_m = -17.871

Angular distributions of the ground state tritons have been measured at E_α = 56 MeV (1969GA11) and 104 MeV (1972HA08). See also reaction 41 in ¹³C.

24. ¹³C(⁷Li, ⁶He)¹³N Q_m = -8.034

Angular distributions have been obtained at E(⁷Li) = 36 MeV for the ⁶He ions to ¹³N*(0, 3.51 + 3.55) (1973SC26).

25. ¹²C(¹⁰B, ⁹Be)¹³N Q_m = -4.642

Angular distributions have been measured at E(¹⁰B) = 100 MeV for the transitions to ¹³N*(0, 2.37, 3.51 + 3.55) (1975NA1M). See also (1973YO1D) and (1975RA13; theor.).

26. ¹²C(¹¹B, ¹⁰Be)¹³N Q_m = -9.286

See (1973SC1J, 1974AN36). See also (1970AJ04).

27. ¹²C(¹²C, ¹¹B)¹³N Q_m = -14.014

See (1971SC1F, 1972SC21, 1974AN36).

28. ¹²C(¹⁴N, ¹³C)¹³N Q_m = -5.607

Angular distributions involving ¹³N_g.s. and various ¹³C states (see reaction 45 in ¹³C) have been studied at E(¹⁴N) = 78 MeV (1970VO02), 100 MeV (1974DE03) and 155 MeV (1975NA15, 1976NAZZ; also ¹³N*(2.37, 3.51 + 3.55)). For a symmetry test at 155 MeV, see reaction 45 in ¹³C (1975VO05) and (1969VO01). See also (1974AN36), (1970JA1B, 1973BR1C, 1973SC1J, 1973VO1E, 1974SC1M, 1975HA1P) and (1970AN1D, 1973DE02, 1973DE1R, 1973DE35, 1974BR18, 1974BR37, 1975RE04; theor.).

29. (a) ¹³C(p, n)¹³N Q_m = -3.003
(b) ¹³C(p, pn)¹²C Q_m = -4.9464

Angular distributions of ground state neutrons have been measured at E_p = 3.1 to 18.5 MeV [see (1970AJ04)] and at 30 and 50 MeV (1970CL01; also (n₁), n₂), at E_p = 16.3 and 22.8 MeV (1975LI11; also n₁, n₂ + n₃). Neutron thresholds have been observed to ¹³N*(0, 3.51) (1966RI09). ¹³N*(2.37) is weakly populated in this reaction: see e.g., (1961DA09, 1970CL01). See also (1969MO32), (1973CL1E; astrophys. questions), (1970AT1A, 1970DA1E, 1970LA1B, 1970LO1B, 1971GE12; theor.), (1975AU1F, 1975DO1J, 1975LI11; applied work).

In sequential decay of reaction (b) at E_p = 7.9 to 12 MeV one or more of the ¹³N states at E_x = 3.5 MeV appear to be involved (1970OT1A, 1971OT02).

30. ¹³C(³He, t)¹³N Q_m = -2.239

At E(³He) = 39.6 MeV, angular distributions have been obtained for the tritons corresponding to the ground state of ¹³N and to the excited states at 2.37, 3.53 ± 0.03 (unresolved), 6.36, 7.16, 7.38, 8.92 ± 0.04, 11.85 ± 0.04 and 15.07 MeV. States at E_x = 9.5, 10.78 ± 0.04 and 15.98 ± 0.05 MeV were also populated, the first of these weakly. The transitions to ¹³N*(7.38, 8.92, 11.85, 15.07) are L = 2 [J^π = 5/2^-, 1/2^-, 3/2^-, 3/2^-, respectively] (1969BA06). Angular distributions have also been reported at E(³He) = 14 MeV (1970NU02; t₀, t₁).

31. ¹³C(⁶Li, ⁶He)¹³N Q_m = -5.730

At E(⁶Li) = 31.8 MeV, angular distributions have been measured for the transitions to ¹³N*(0, 3.51 + 3.55 (1970CH19, 1971CH1B). See also (1975DI1J; theor.).

32. ¹³C(¹⁴N, ¹⁴C)¹³N Q_m = -2.377

See (1971GA05) and (1973TO05; theor.).

33. ¹³O(β⁺)¹³N → ¹²C + p Q_m = 15.816

See ¹³O.

34. ¹⁴N(γ, n)¹³N Q_m = -10.554

See (1973KI05; theor.) and ¹⁴N.

35. ¹⁴N(p, d)¹³N Q_m = -8.329

Angular distributions have been measured for the deuterons to ¹³N*(0, 2.37, 3.51 + 3.55, 7.38, 8.92, 11.87) at many energies up to E_p = 155.6 MeV: see (1970AJ04) for a listing of the earlier work and (1971CU01: E_p = 14.5 MeV; d₀) and (1975RO27: E_p = 65 MeV; to states listed above; spectroscopic factors). The speparation energy spectrum has been measured at E_p = 185 MeV (1973FA10). See also (1971MC15; theor.).

36. ¹⁴N(d, t)¹³N Q_m = -4.296

Angular distributions of the tritons to ¹³N*(0, 3.51, 7.38, 8.93 + (9.00) + 9.48, 11.8) have been obtained at E_d = 52 MeV and analyzed by DWBA. The spectroscopic factors for the ¹³N states [and the mirror states reached in the ¹⁴N(d, ³He)¹³C reaction] are in good agreement with theory and are additional evidence for the J^π assignments of 1/2^-, 3/2^-, 5/2^-, 1/2^-, 3/2^- and 3/2^- to these states (1968HI01). Comparisons of (d, t) and (d, ³He) angular distributions are also reported by (1966DE1C, 1968GA13) and by (1974LU06: E_d = 15 MeV): see reaction 75 in ¹³C. See also ¹⁶O in (1977AJ02) and (1971BO50, 1974DA1D; theor.).

37. (a) ¹⁴N(³He, α)¹³N Q_m = 10.025
(b) ¹⁴N(³He, pα)¹²C Q_m = 8.081

Alpha-particle groups have been observed to the first seven excited states of ¹³N, including two at E_x = 7.166 and 7.388 MeV (1962CL12: ± 8 keV). Angular distributions have been studied at many energies up to E(³He) = 45 MeV: see (1970AJ04) for a listing of the earlier work and (1972MO39: 3.60 → 6.24 MeV; α₀) and (1970KN01: 4.5, 5.5, 7.0 MeV; α₀, α₁, α₂₊₃). Reaction (b), studied at E(³He) = 8 MeV, appears to involve some excited states of ¹³N, possibly ¹³N*(7.93, 8.92, 11.87) (1969HO13).

38. ¹⁴N(⁶Li, ⁷Li)¹³N Q_m = -3.303

An angular distribution has been measured at E(⁶Li) = 32 MeV for the transition to ¹³N_g.s. and ⁷Li*(0, 0.48). ¹³N*(2.37) was also populated (1971GR44, 1971ZE1C). See also (1973OG1A), (1974FL1A; theor.) and reaction 77 in ¹³C.

39. ¹⁴N(⁹Be, ¹⁰Be)¹³N Q_m = -3.742

See (1973TO05; theor.).

40. ¹⁴N(¹⁴N, ¹⁵N)¹³N Q_m = 0.280

See (1970GO1B), (1970AN1D, 1970KA41, 1970TR1B, 1971AL1D, 1971AN12, 1973OS03, 1974OS1A, 1975OS01; theor.) and (1970AJ04).

41. ¹⁵N(p, t)¹³N Q_m = -12.905

At E_p = 43.7 MeV, angular distributions have been obtained for the tritons corresponding to the ground state of ¹³N and the excited states at 3.51 (3/2^-), 6.38 ± 0.03 (5/2⁺), 7.38 (5/2^-), 8.93 ± 0.05 (1/2^-), 10.78 ± 0.06 (1/2^-), 11.88 ± 0.04 (3/2^-) and 15.07 (3/2^-; T = 3/2) MeV states [J^π values in parentheses, as determined by DWBA analyses using intermediate-coupling wave functions to obtain the two-nucleon structure factors] (1968FL03). Detailed comparisons have been made with the (p, ³He) reaction to the mirror states in ¹³C (1968FL02, 1968FL03, 1974MA12): see reaction 82 in ¹³C. Angular distributions have also been measured for the triton groups to ¹³N*(0, 3.51 + 3.55, 7.39) at several energies in the range E_p = 24.0 to 43.5 MeV (1974PI05, 1975MI01). See also (1970HA23, 1972HA1X), (1969TE1A), (1971KA04; theor.) and ¹⁶O in (1977AJ02).

42. ¹⁶O(γ, t)¹³N Q_m = -25.033

See ¹⁶O in (1977AJ02).

43. (a) ¹⁶O(p, α)¹³N Q_m = -5.218
(b) ¹⁶O(p, pα)¹²C Q_m = -7.1616

Measurements of angular distributions have been reported at E_p = 19 to 44 MeV (1970GU06, 1971GU23; α₀, α₁) and at 54.1 MeV (1972MA21; α₀, α₂ and α to ¹³N*(7.38, 12.13)). The parameters of the latter state are: E_x = 12.13 ± 0.06 MeV, Γ_cm ≈ 300 keV, J^π = 7/2^- (1972MA21). For earlier work on angular distributions to E_p = 38 MeV see (1970AJ04). See also (1967SP09) and (1973CL1E; astrophys. questions). For reaction (b) see (1967CH04, 1972BO71). See also ¹⁷F in (1977AJ02).

44. ¹⁶O(³He, ⁶Li)¹³N Q_m = -9.238

Angular distributions have been studied at E(³He) = 30 and 40.7 MeV for the ⁶Li ions corresponding to ¹³N_g.s. (1972OH01). See also (1966CE02).

45. ¹⁶O(α, ⁷Li)¹³N Q_m = -22.566

The angular distribution for the transition to ¹³N_g.s. + ⁷Li_g.s. + 0.48 has been measured at E_α = 42 MeV (1972RU03).

46. ¹⁶O(¹⁴N, ¹⁷O)¹³N Q_m = -6.411

This reaction has been studied at E(¹⁴N) = 79 MeV (1976MO03) and 155 MeV (1975NA15).

47. ¹⁸O(d, ⁷Li)¹³N Q_m = -7.901

See (1970AJ04).