A=17O (1986AJ04)

Angular distributions have been reported at E(⁹Be) = 16.1 to 20 MeV [see (1982AJ01)] and at E(⁹Be) = 12.0 to 27.0 MeV (1981JA09; α₀, α₂). For excitation functions see (1982AJ01) and (1982HU06, 1983JA09). See also (1983VO1A).

8. ¹³C(α, γ)¹⁷O Q_m = 6.3592

At E_α = 3.65 and 6.17 MeV [¹⁷O*(9.15, 11.08)] Γ_αΓ_γ₁/Γ = 0.65 ± 0.07 and 1.46 ± 0.13 eV, respectively. Assuming Γ_α/Γ = 0.45 for the lower resonance, Γ_γ₁ for the E1 transition from ¹⁷O*(9.15) [J^π =1/2^-] to ¹⁷O*(0.87) [1/2⁺] is 1.44 ± 0.26 eV. The parameters of ¹⁷O*(11.08) are discussed in Table 17.11 (in PDF or PS) (1983RA29).

9. (a) ¹³C(α, n)¹⁶O Q_m = 2.2156 E_b = 6.3592
(b) ¹³C(α, α)¹³C

The yield of neutrons increases monotonically for E_α = 0.475 to 1 MeV: for S(E) see (1977AJ02, 1982AJ01). Resonances observed in the yield of neutrons and through the anomalies in the elastic scattering in Table 17.8 (in PDF or PS). See also (1982BA1D, 1982KR05) and (1985DE1Q; theor.).

10. ¹³C(⁶Li, d)¹⁷O Q_m = 4.884

At E(⁶Li) = 35.5 MeV angular distributions are reported to ¹⁷O*(13.58 ± 0.02) which is strongly populated. Comparisons with ¹²C(⁶Li, d)¹⁶O*(16.29) and with the results of reaction 11 here suggest that the peak corresponding to ¹⁷O*(13.58) contains a state or states of spin 11/2^-, 13/2^-, or both, based on ¹⁶O*(16.29) (1978CL08). (d, α) angular correlations [E(⁶Li) = 26, 29 and 34 MeV] indicate the involvement of ¹⁷O states at 13.6 ± 0.1 [l = 6], 14.15 ± 0.1[5], 15.1 ± 0.1[5], 15.95 ± 0.15[5], 16.6 ± 0.15[6], 17.1 ± 0.15[6], 19.6 ± 0.15[7], 20.2 ± 0.15[7], 21.2[7] and 22.1 MeV, Γ ≈ 0.1, 0.5, 0.7, 0.25 and 0.25 MeV for ¹⁷O*(14.2, 15.1, 16.0, 19.6, 20.2) (1978AR15). See, however, (1984CA39). For the earlier work see Table 17.7 (in PDF or PS) in (1977AJ02).

11. ¹³C(⁷Li, t)¹⁷O Q_m = 3.891

At E(⁷Li) = 35.7 MeV angular distributions are reported to ¹⁷O*(3.06) and to ¹⁷O*(13.58) which is preferentially populated (see discussion in reaction 10). Narrow states at E_x = 14.86, 18.17 and 19.24 MeV are also strongly excited (1978CL08). For the earlier work see Table 17.7 (in PDF or PS) in (1977AJ02).

12. ¹³C(¹³C, ⁹Be)¹⁷O Q_m = -4.2884

At E(¹³C) = 105 MeV states of ¹⁷O with E_x = 3.9, 5.2, 5.8 ± 0.1, 7.2, 7.6, 8.4 ± 0.06, 8.9, 9.8 ± 0.07, 10.55 ± 0.06, 12.1 ± 0.06, 13.3, 14.6 and 18.9 ± 0.14 MeV are reported (1979BR04).

13. ¹³C(¹⁶O, ¹²C)¹⁷O Q_m = -0.8027

Angular distributions involving ¹⁷O*(0, 0.87) have been studied for E(¹⁶O) = 12 to 25 MeV: see (1977AJ02, 1982AJ01). See also (1979GO1C).

14. ¹⁴C(³He, γ)¹⁷O Q_m = 18.7605

The capture cross sections at 90° for γ₀ and for γ₁ have been studied for E(³He) = 3.2 to 7.5 MeV and angular distributions of the γ-rays have been studied at the six observed resonances: see Table 17.9 (in PDF or PS).

15. (a) ¹⁴C(³He, n)¹⁶O Q_m = 14.6169 E_b = 18.7605
(b) ¹⁴C(³He, ³He)¹⁴C
(c) ¹⁴C(³He, α)¹³C Q_m = 12.4013

See Table 17.9 (in PDF or PS). See also (1977AJ02), ¹³C and ¹⁴C in (1986AJ01) and ¹⁶O here.

16. ¹⁴C(⁶Li, t)¹⁷O Q_m = 2.9649

At E(⁶Li) = 34 MeV angular distributions have been reported to ¹⁷O*(0, 0.87, 3.06, 3.84, 4.55, 5.70, 6.36, 7.17(u), 7.38(u), 7.76, 8.20, 8.47(u), 9.18(u), 9.71, 9.87(u), 10.42, 11.24, 11.82, 12.01, 12.27, 13.00(u), 13.6(u), 14.76(u), 15.20, 16.3(u)) (1981CU11, 1983CU02, 1983CU04; u = unresolved). (1983CU02) suggests evidence for two 3p - 2h bands in ¹⁷O and (1983CU04) for analog states in ¹⁷N - ¹⁷O. See these two papers for spectroscopic factors.

17. ¹⁴N(t, γ)¹⁷O Q_m = 18.6226

The excitation functions for γ₀ and γ₁ have been measured for E_t = 0.8 to 3.3 MeV: broad resonances are observed at 2.2 and 2.8 MeV in the γ₀ cross section, and at 2.4 and 2.8 MeV in the γ₁ cross section. Both also exhibit a structure at 1.5 MeV. The data are consistent with states at E_x = 19.76 ± 0.06 [J = 3/2], 20.39 ± 0.05 [5/2, 7/2^-], 20.58 ± 0.05 [1/2] and 21.05 ± 0.05 MeV [3/2] with Γ = 0.55 ± 0.05, 0.66 ± 0.07, 0.57 ± 0.08 and 0.47 ± 0.06 MeV, and possibly with a state at ≈ 19.3 MeV. Γ_γ₀ > 1.0, 4.3 and 5.8 eV for ¹⁷O*(19.8, 20.4, 21.1) and Γ_γ₁ > 2.3, 5.1 and 6.5 eV for ¹⁷O*(19.8, 20.6, 21.1) (1980LI05). For the charged particle channels see (1977AJ02).

18. (a) ¹⁴N(α, p)¹⁷O Q_m = -1.1914
(b) ¹⁴N(α, αp)¹³C Q_m = -7.55062

Angular distributions have been measured for ¹⁷O states with E_x < 7.6 MeV in the range E_α = 8.1 → 33.3 MeV: see a listing of the references in (1971AJ02). The sequential decay (reaction (b)) appears to take place via ¹⁷O states with 8.46 ≤ E_x ≤ 13.57 MeV. Those involved are believed to have J ≥ 5/2, Γ_α/Γ ≥ 0.6.

19. (a) ¹⁴N(⁶Li, ³He)¹⁷O Q_m = 2.827
(b) ¹⁴N(⁶Li, ³Heα)¹³C Q_m = -3.5322

Angular distributions (reaction (a)) and angular correlations (reaction (b)) have been measured at E(⁶Li) = 36 MeV involving ¹⁷O*(8.48, 10.7, 12.0, 13.53, 14.88). Comparisons are made with the results in the analog reaction [(⁶Li, t)] involving states in ¹⁷F (1984ET01). [Comment: compare the experimental resolution with the density of states]. For the earlier work see (1982AJ01).

20. (a) ¹⁵N(d, n)¹⁶O Q_m = 9.9030 E_b = 14.0466
(b) ¹⁵N(d, p)¹⁶N Q_m = 0.266

Excitation functions have been measured for E_d = 0.5 to 5.9 MeV (reaction (a)) and 0.3 to 6.3 MeV (reaction (b)): see (1977AJ02). Unresolved structures are observed in the neutron data. There is some evidence for structures at E_d = 1.8 MeV [p₀, p₁, p₃] and 2.4 MeV [p₂] [¹⁷O*(15.6, 16.2)]: see (1982AJ01). See also (1984HE20) and ¹⁶N, ¹⁶O here.

21. ¹⁵N(d, d)¹⁵N E_b = 14.0466

Excitation functions for d₀ have been measured for E_d = 1.4 to 6.25 MeV. Structures are reported at ≈ 1.4 and 1.8 MeV: see (1982AJ01).

22. ¹⁵N(d, α)¹³C Q_m = 7.6874 E_b = 14.0466

Yield curves have been measured for E_d = 0.8 to 2.7 MeV. Structures are reported at E_d = 1.06, 1.25 and ≈ 1.8 MeV. The latter has Γ ≈ 300 keV: see (1982AJ01). See also (1986SA41; applied).

23. ¹⁵N(³He, p)¹⁷O Q_m = 8.5531

Observed proton groups are displayed in Table 17.10 (in PDF or PS). For the parameters of the first T = 3/2 state see Table 17.11 (in PDF or PS).

24. ¹⁵N(α, d)¹⁷O Q_m = -9.8001

At E_α = 45.4 MeV, the deuteron spectrum is dominated by the groups corresponding to states with E_x = 7.742 ± 0.020 and 9.137 ± 0.030 MeV. These states are assigned J^π = (11/2^-) and (9/2^-) and arise from a dominant (d_5/2)²₅p^-1_1/2 configuration: see (1977AJ02).

25. ¹⁵N(¹¹B, ⁹Be)¹⁷O Q_m = -1.7689

See (1982AJ01).

26. ¹⁶O(n, γ)¹⁷O Q_m = 4.1436

σ_capt. = 202 ± 28 μb (1977MC05). See also (1981MUZQ).

At thermal energies the branchings via ¹⁷O*(0.87, 3.05) are (18 ± 3) and (82 ± 3)%; E_γ = 870.89 ± 0.22 and 2184.47 ± 0.12 keV [the latter leads to E_x = 3055.43 ± 0.19 keV for ¹⁷O*(3.09); A.H. Wapstra, private communication]. The cross section for two-photon emission σ_2γ < 3 ± 19 μb for 1200 < E_γ < 2943 keV. The two-photon branching ratio is (1.6 ± 10) x 10^-2 (1977MC05).

27. ¹⁶O(n, n)¹⁶O E_b = 4.1436

The scattering amplitude (bound) a = 5.805 ± 0.005 fm, σ_free = 3.761 ± 0.007 b (1979KO26). See also (1981MUZQ). Resonances observed in the elastic scattering and in the (n, α) reaction are displayed in Table 17.12 (in PDF or PS). A two-channel R-matrix analysis finds that five states contain nearly 100% of the 1d_3/2 strength and have their eigenenergy at E_x ≈ 5.7 MeV [the dominant state is ¹⁷O*(5.08)]. Spectroscopic factors are deduced for 26 states in ¹⁷O for 4.5 < E_x < 9.5 MeV [see Table 17.12 (in PDF or PS) in (1977AJ02)]: the sum of these factors is 1% for J^π = 1/2⁺, 5% for 1/2^-, 12% for 3/2^-, 99% for 3/2⁺, 0.1% for 5/2⁺, 1% for 5/2^- and 14% for 7/2^-. T = 3/2 resonances are discussed by (1981HI01): see Tables 17.11 (in PDF or PS) and 17.12 (in PDF or PS).

Cross-section measurements are listed in Table 17.10 (in PDF or PS) of (1971AJ02) and in (1977AJ02, 1982AJ01). An optical model analysis of angular distributions leads to predictions of σ_R and σ_T for E_n = 6 to 9 MeV (1983DA22). A_y measurements for n₀ have been carried out at E_n = 5 to 17 MeV (1985ANZX) and at 23 MeV (1985LA13).

See also ¹⁶O, (1982RA1A, 1983GO1H, 1984ISZZ), (1982DI1E, 1983HA1U; applications) and (1981AO01, 1981SH1A, 1982HO03, 1982LI13, 1982YA07, 1983UE01, 1985TI07; theor.).

28. ¹⁶O(n, n')¹⁶O* E_b = 4.1436

A number of resonances have been observed in the cross sections for production of 6.13 and (6.92 + 7.12) γ-rays: see Table 17.13 (in PDF or PS) in (1977AJ02) and (1982AJ01). For cross-section measurements see Table 17.10 (in PDF or PS) in (1971AJ02) and (1977AG03, 1982AJ01).

29. (a) ¹⁶O(n, p)¹⁶N Q_m = -9.637 E_b = 4.1436
(b) ¹⁶O(n, d)¹⁵N Q_m = -9.9030
(c) ¹⁶O(n, t)¹⁴N Q_m = -14.4790

See (1982AJ01). See also (1981HAZJ, 1982HA1A).

30. ¹⁶O(n, α)¹³C Q_m = -2.2156 E_b = 4.1436

Table 17.12 (in PDF or PS) displays the results from a multilevel two-channel R-matrix analysis of the data from this reaction and from the elastic scattering of neutrons: see (1982AJ01). See also (1981HAZJ, 1982HA1A).

31. ¹⁶O(p, π⁺)¹⁷O Q_m = -136.206

Angular distributions have been reported at E_p = 185 and 800 MeV [to ¹⁷O*(0, 0.87, 3.05)] [see (1982AJ01)] as well as at E_p = 154 to 185 MeV (1981SJ03) and E_{pol. p} = 157 MeV (1981SJ02; also A_y) [both for π⁺ to ¹⁷O*(0, 0.87)]. See also (1982AJ01, 1982FE1A, 1982HO1C, 1982NA1K, 1982WA1G) and (1981CO18, 1982CO07; theor.).

32. ¹⁶O(d, p)¹⁷O Q_m = 1.9191

Observed proton groups are displayed in Table 17.14 (in PDF or PS) of (1977AJ02). Angular distributions have been measured at many energies in the range E_d = 0.3 to 63.2 MeV and at E_d = 698 MeV [see (1982AJ01)] and at 7.5 MeV (1985GR1B; p₀, p₁, p₃). Reported level parameters are τ_m = 258.6 ± 2.6 psec [see Table 17.7 (in PDF or PS) in (1971AJ02)] and E_x = 870.749 ± 0.020 keV [E_γ = 870.725 ± 0.020 keV] for ¹⁷O*(0.87) and Γ_n = 97 ± 5 keV for ¹⁷O*(5.09): see (1982AJ01).

See also ¹⁸F in (1983AJ01, 1987AJ02), (1982BE64, 1985LI1H, 1986DU1K; applications), (1982LO1B, 1982YA1A) and (1982SH06, 1982TH02, 1983IC01, 1983SH15; theor.).

33. (a) ¹⁶O(⁷Li, ⁶Li)¹⁷O Q_m = -3.107
(b) ¹⁶O(⁹Be, ⁸Be)¹⁷O Q_m = 2.4782
(c) ¹⁶O(¹¹B, ¹⁰B)¹⁷O Q_m = -7.311

For reactions (a) and (c) see (1982AJ01). For reaction (b) see (1979CU1A, 1985CU1A).

34. (a) ¹⁶O(¹³C, ¹²C)¹⁷O Q_m = -0.8027
(b) ¹⁶O(¹⁴N, ¹³N)¹⁷O Q_m = -6.4098

For reaction (a) see (1985BE37) and (1983OS08; theor.). For reactions (a) and (b) see (1982AJ01).

35. ¹⁷N(β^-)¹⁷O Q_m = 8.680

The decay is principally to ¹⁷O*(4.55, 5.38, 5.94): see Table 17.3 (in PDF or PS).

36. (a) ¹⁷O(γ, n)¹⁶O Q_m = -4.1436
(b) ¹⁷O(γ, 2n)¹⁵O Q_m = -19.8075

Monoenergetic photons with E_γ = 8.5 to 39.7 MeV have been used to measure the (γ, n) and the (γ, 2n) [above 10 MeV] cross sections. The giant dipole resonance, 6 MeV broad, is centered at 23 MeV; a pigmy resonance is also observed at 13 MeV. The pigmy resonance [J^π = 3/2^-] decays primarily to ¹⁶O_g.s.. Above E_x ≈ 17 MeV nearly all of the decay is to excited states of ¹⁶O. Four resonances have been inferred at E_x = 10.5, 14.0, 16.6 and 21.0 MeV with J^π = 5/2^-, 3/2^-, 7/2^- and 7/2^-, respectively (1985JU02). Most of the GDR strength decays to T = 1 states in ¹⁶O: this implies a T = 3/2 assignment for the main part of the GDR. A broad structure, of T = 1/2 nature, with 28 < E_x < 36 MeV is also reported (1980JU01). For radiative widths see Table 17.13 (in PDF or PS) in (1982AJ01). See also (1983RO1J) and (1981HO1H, 1982JU03, 1985PY01).

37. ¹⁷O(e, e)¹⁷O

The ¹⁷O charge radius, < r² > ^1/2 = 2.710 ± 0.015 fm (1978KI01). The r.m.s. radius of the 1d_5/2 neutron orbit is calculated to be 3.56 ± 0.09 fm (1982HI01). Inelastic scattering is reported to a number of ¹⁷O states: see Tables 17.13 (in PDF or PS) and 17.14 (in PDF or PS). Form factor measurements have been made at 90° and 160° to all the states with E_x < 7.8 MeV and to 45 other states with E_x ≤ 20.7 MeV (1986MA48; D.M. Manley, private communication).

See also (1986KAZZ, 1986MAZW), (1982BE1J, 1982BE1A, 1982NO04, 1983BE36, 1983BU08, 1983DE1N, 1983FR1B, 1984DO20), (1982BO1H, 1982CO03, 1982MC01, 1985KIZY; theor.) and reaction 44.

38. ¹⁷O(π^±, π^±)¹⁷O

At E_π^± = 164 MeV angular distributions to ¹⁷O*(3.85, 4.55, 5.22, 5.69, 7.76, 8.1, 8.4, 15.7, 17.1) have been analyzed by DWBA. Evidence is suggested for E2 strength near 8 MeV and for M4 strength to the two states at E_x = 15.7 and 17.1 MeV (1984BL17). [See, however, caveat on p. 1900 of that reference, and the density of states above E_x = 5 MeV in Table 17.7 (in PDF or PS).]

39. (a) ¹⁷O(p, p)¹⁷O
(b) ¹⁷O(d, d)¹⁷O

Angular distributions for the elastic scattering have been reported for E_p = 8.6 to 65.8 MeV and E_d = 18 MeV: see (1982AJ01) and at E_{pol. p} = 89.7 MeV (1985VO12). For reaction (a) see also ¹⁸F in (1983AJ01), (1982BE1A) and (1983IC01; theor.).

40. (a) ¹⁷O(³He, ³He)¹⁷O
(b) ¹⁷O(α, α)¹⁷O

Elastic angular distributions have been measured at E(³He) = 11.0 and 17.3 MeV [see (1977AJ02)], at 14 MeV (1982AB04) and at E(pol. ³He) = 33.3 MeV (1983LE03; also A_y; to both ¹⁷O*(0, 0.87)). For reaction (b) see (1982AJ01). See also ²⁰Ne in (1987AJ02) and (1981CO15, 1985HA11; theor.).

41. (a) ¹⁷O(⁹Be, ⁹Be)¹⁷O
(b) ¹⁷O(¹⁰B, ¹⁰B)¹⁷O

Fusion cross section measurements for reaction (b) are reported by (1982CH07). See also (1982AJ01, 1983BI13, 1984HA53) and (1983GO13, 1984FR1A; theor.).

42. (a) ¹⁷O(¹²C, ¹²C)¹⁷O
(b) ¹⁷O(¹³C, ¹³C)¹⁷O
(c) ¹⁷O(¹⁴C, ¹⁴C)¹⁷O

Elastic angular distributions (reactions (a) and (b)) have been reported at E(¹⁷O) = 30.5 to 33.8 MeV [see (1982AJ01)] and at E(¹⁷O) = 40 to 70 MeV (1986FR04; also ¹⁷O*(0.87)) and 85.4, 120 and 140 MeV (1982HE07). For fusion cross section and yield measurements see (1982AJ01) and (1982HE07, 1983FR17, 1985BE40, 1985BE37, 1986FR04). See also (1983BI13, 1983DU13, 1984FR1A, 1984HA53) and (1982LO13, 1983AB08, 1984AB1A, 1984AB1F, 1985CH1R, 1985HU04, 1985MI13, 1985PAZY, 1986CI01, 1986PAZW, 1986PA04; theor.).
43. ¹⁷O(¹⁵N, ¹⁵N)¹⁷O

See (1983DU13).

44. (a) ¹⁷O(¹⁶O, ¹⁶O)¹⁷O
(b) ¹⁷O(¹⁸O, ¹⁸O)¹⁷O

Angular distributions involving ¹⁷O*(0, 0.87) in reaction (a) have been studied at E(¹⁶O) = 22 to 32 MeV and E(¹⁷O) = 25.7 to 32.0 MeV [see (1977AJ02)] as well as at E(¹⁷O) = 22 MeV (1983BU08; elastic σ(θ) to ± 1%). A model independent value of 0.82 ± 0.07 is obtained for the coupling constant of the 1d_5/2 neutron in ¹⁷O. A review of magnetic electron scattering on ¹⁷O then leads to a spectroscopic factor S = 1.03 ± 0.07. This corresponds to (91 ± 7)% of the single-particle value (1983BU08). For fusion cross sections see (1982AJ01) and (1986TH01). The elastic scattering angular distribution in reaction (b) has been reported at E(¹⁷O) = 36 MeV: see (1982AJ01). See also (1982HO1E, 1983BI13, 1983DU13, 1983FR1B, 1984HA53).

45. (a) ¹⁷O(²²Ne, ²²Ne)¹⁷O
(b) ¹⁷O(²⁴Mg, ²⁴Mg)¹⁷O
(c) ¹⁷O(²⁷Al, ²⁷Al)¹⁷O
(d) ¹⁷O(²⁸Si, ²⁸Si)¹⁷O
(e) ¹⁷O(⁴⁰Ca, ⁴⁰Ca)¹⁷O

See (1982AJ01), (1983DU13, 1983GR1M, 1984FR1A) and (1982LA02, 1982LO13, 1982PA09, 1984QU03; theor.).

46. ¹⁷F(β⁺)¹⁷O Q_m = 2.7608

See ¹⁷F.

47. ¹⁸O(p, d)¹⁷O Q_m = -5.820

Angular distributions have been measured at a number of energies for E_p = 17.6 to 51.9 MeV: see (1977AJ02, 1982AJ01).

48. ¹⁸O(d, t)¹⁷O Q_m = -1.787

See Table 17.15 (in PDF or PS). See also reaction 6 in ¹⁷N.

49. ¹⁸O(³He, α)¹⁷O Q_m = 12.534

See Tables 17.16 (in PDF or PS) and 17.11 (in PDF or PS). See also (1982AJ01).

50. (a) ¹⁸O(¹⁰B, ¹¹B)¹⁷O Q_m = 3.410
(b) ¹⁸O(¹¹B, ¹²B)¹⁷O Q_m = -4.674

Angular distributions (reaction (a)) have been measured at E(¹⁸O) = 20 and 24 MeV: see (1977AJ02). For S-factor measurements see (1977AJ02). Cross sections for reaction (b) are several orders of magnitude less than those for reaction (a) for E(¹⁸O)_c.m. = 3 → 7.7 MeV: see (1977AJ02).

51. (a) ¹⁹F(n, t)¹⁷O Q_m = -7.5566
(b) ¹⁹F(p, ³He)¹⁷O Q_m = -8.320

See (1977AJ02).

52. ¹⁹F(d, α)¹⁷O Q_m = 10.033

Observed α-groups are displayed in Table 17.14 (in PDF or PS) of (1977AJ02). Angular distributions have been measured at many energies in the range E_d = 0.3 to 27.5 MeV [see (1977AJ02)] and at E_d = 2.75 MeV (1985BE2J; α₀). See also (1983JI04).

53. (a) ¹⁹F(α, ⁶Li)¹⁷O Q_m = -12.339
(b) ²⁰Ne(n, α)¹⁷O Q_m = -0.590

See (1977AJ02).

54. ²³Na(d, ⁸Be)¹⁷O Q_m = -0.528

See (1984NE1A).