
^{15}N (1986AJ01)(See Energy Level Diagrams for ^{15}N) GENERAL: See also (1981AJ01) and Table 15.4 [Table of Energy Levels] (in PDF or PS) here. Nuclear models:(1983PI03, 1983SH38, 1983VA31, 1984VA06, 1984ZW1A). Special states:(1979ZA07, 1980FU1G, 1980RI06, 1981IS11, 1981LI19, 1982ZA1D, 1983GO1R, 1983PI03, 1983VA31, 1984GO1M, 1984VA06, 1984ZW1A, 1985HA1J). Electromagnetic transitions:(1980RI06, 1981LI19, 1983TO08, 1984KU07). Astrophysical questions:(1980AU1D, 1980WA1M, 1981AD1F, 1981GU1D, 1981WA1N, 1981WA1Q, 1982KE1B, 1983AL23, 1983SI1B, 1985DR1A, 1985GU1A). Complex reactions involving ^{15}N:(1978WU07, 1980RI06, 1980VO1D, 1981DE1W, 1981HU01, 1981ME13, 1981VA1D, 1981VO06, 1982HO10, 1982LE1N, 1982LO13, 1982LU02, 1982LY1A, 1983CH23, 1983DE26, 1983EN04, 1983FR1A, 1983JA05, 1983MA06, 1983OL1A, 1983PL1A, 1983SA06, 1983SI1A, 1983VO04, 1983WI1A, 1984GR08, 1984HI1A, 1984HO23, 1985GU1A, 1985MO08). Applied work:(1980SE1E, 1981WA1K, 1982MA1R, 1983AM1A, 1983AM1D, 1983MA1Q, 1983MA83, 1983SC43, 1983SK1B, 1984HA1Q, 1984MA2H, 1985AL1N, 1985WA1R). Muon and neutrino capture and reactions (See also reaction 59.):(1983GM1A, 1984WA07). Pion capture and reactions (See also reactions 48 and 61.):(1981BA1P, 1981LE06, 1981OS04, 1981OS05, 1981RE04, 1982DO10, 1982OS01, 1983KA19, 1983KI01, 1983TO17, 1983TR1J, 1984GR27, 1984HAZV, 1984LEZX, 1985GU1A, 1985RE1D). Reactions involving other mesons and hyperons:(1982DO1L, 1983FE07). Antiproton reactions:(1983BA2R). Hypernuclei:(1980IW1A, 1981WA1J, 1982ER1E, 1982GR1P, 1982KA1D, 1982RA1L, 1983CH1T, 1983DO1B, 1983FE07, 1983GA17, 1983KO1D, 1983SH38, 1983SH1E, 1984AS1D, 1984CH1G, 1984SH1J, 1985AH1A). Other topics:(1981SH17, 1982NG01, 1982ZA1D, 1983GO1R, 1983KH1D, 1983MA38, 1983MA35, 1983SH1T, 1983TO08). Groundstate properties of ^{15}N:(1981AV02, 1981DE1W, 1982LO13, 1982LU02, 1982NG01, 1982ZA1D, 1983ANZQ, 1983BA33, 1983BU07, 1983DE1X, 1983MA38, 1983TO08, 1983VA31, 1984AR1D, 1984BO11, 1984HUZZ, 1984KA25, 1984KU07, 1984WE04, 1985AR11, 1985GA06, 1985HA18, 1985FA01).
Natural abundance = (0.366 ± 0.009)% (1984DE53).
The yield of p_{0} and p_{1} (reaction (a)) for E(^{6}Li) = 3.84 to 6.40 MeV shows some broad structure: analysis in terms of Ericson fluctuation theory gives a value of ≈ 0.4 MeV for the average level width at E_{x} = 28 MeV in ^{15}N. The excitation functions for t_{0} (reaction (b)), α_{0}, α_{1} and α_{2} (reaction (c)) show broad structures for E(^{6}Li) = 4 to 14 MeV. See (1976AJ04) for the references.
See (1981AJ01).
At E(^{6}Li) = 4.9 MeV, thirty proton groups are observed corrresponding to ^{15}N states with E_{x} < 16.8 MeV. Angular distributions have been measured for the proton groups corresponding to ^{15}N*(5.27 + 5.30, 6.32, 7.16 + 7.30, 7.57, 8.31, 8.57, 9.05 + 9.15): see (1976AJ04).
At E(^{7}Li) = 24 MeV angular distributions have been studied to many of the ^{15}N states with E_{x} < 15.5 MeV: see (1981AJ01).
The 90° differential cross section for γ_{0} production has been measured for E_{α} = 5.74 to 18.0 MeV [see (1981AJ01)] and for 6.89 to 8.0 and 12.8 to 15 MeV (1984DE09). For the observed resonances see Table 15.7 (in PDF or PS). See also (1982DU1A; theor.).
Reported resonances are displayed in Table 15.8 (in PDF or PS). For thicktarget yields (E_{α} = 3.5 to 7.5 MeV) see (1979BA48).
Reported resonances are listed in Table 15.8 (in PDF or PS). The yield curve for ^{14}C is dominated by two strong resonances at E_{α} = 1.57 and 2.64 MeV. At higher energies (to 25 MeV) the p_{0} excitation functions show broad features. See (1981AJ01).
The yield of d_{0} has been measured for E_{α} = 13.5 to 25 MeV. The exciation functions for t_{0} and t_{1} (to 25 MeV) show strong uncorrelated structures. See (1976AJ04, 1981AJ01).
Observed resonances for E_{α} = 2.1 to 7.9 MeV are shown in Table 15.8 (in PDF or PS).
At E(^{6}Li) = 34 MeV angular distributions are reported to the states with 5.3 < E_{x} < 16.3 MeV: this reaction appears to be less selective than reaction 11. The most strongly populated states are ^{15}N*(9.2, 10.5, 10.7, 13.1, 14.8, 15.5). See (1981AJ01).
At E(^{7}Li) = 24 and 34 MeV, angular distributions to states with 5.3 < E_{x} < 15.6 MeV have been measured: ^{15}N*(9.8, 10.5, 10.7, 15.4, 15.5) are patricularly strongly populated at 34 MeV. J^{π} = 9/2^{+}, 9/2, 11/2, 9/2, 11/2, 13/2, 15/2 are suggested for ^{15}N*(10.69, 12.56, 13.03, 13.19, 13.84, 14.11, 15.37). Only ^{15}N*(15.52) appears to have a large cluster component corresponding to ^{11}B + α. See (1981AJ01). The γdecay of ^{15}N states populated in this reaction has been studied by (1979HA38): see Tables 15.5 (in PDF or PS) and 15.6 (in PDF or PS).
See (1984DA17) for cross sections and Sfactors.
See (1976AJ04).
Angular distributions have been measured at E(^{16}O) = 27 to 60 MeV involving the two protonhole states of ^{15}N[^{15}N*(0, 6.32); J^{π} = 1/2^{}, 3/2^{}] and ^{12}C*(0, 4.4, 9.6): see (1976AJ04). See also (1983EL01; theor.).
The 90° excitation function for γ_{0} in the range 1.0 to 6.5 MeV [see (1981AJ01) and (1983DR13; polarized tritons and γrays; E_{pol. t} = 2.3 to 6.5 MeV)] shows one very strong resonance (at peak, 4.4 ± 0.5 μb/sr) corresponding to ^{15}N*(16.7) as well as two other strong (unresolved and/or broad resonances) at E_{t} ≈ 3.3 and 6 MeV: Table 15.9 (in PDF or PS) shows the derived parameters. Table 15.9 (in PDF or PS) also displays the structures observed in reactions (b) → (e). At E_{pol. t} = 17 MeV the polarization and analyzing power for the transition to ^{14}C_{g.s.} (reaction (c)) are shown to be the same as required by the conservation of parity (1982HA06). The VAP for the elastic scattering (reaction (d)) has been measured at E_{pol. t} = 9 and 11 MeV (1984FI01). See (1981AJ01) for the earlier work. See also (1984SAZP, 1984SL04; theor.).
See (1984BI08; E(^{3}He) = 235 MeV).
Angular distributions have been measured at many energies for E_{α} = 13.4 to 96.8 MeV [see (1976AJ04, 1981AJ01)] and at E_{α} = 18.5, 21.7 and 25.4 MeV (1981BE19; p_{0}) and 34.9 MeV (1983HA32). See also (1982AM02) in ^{16}O (1982AJ01, 1986AJ04). At E_{α} = 34.9 MeV angular distributions are reported to ^{15}N*(0, 5.3, 6.3, 7.1, 7.3, 7.6, 8.6, 9.2, 9.8, 10.7, 11.2, 11.9, 12.6, 13.0, 13.2, 14.1, 15.3, 15.4, 20.15 ± 0.10). Those to the states with high spin ^{15}N*(10.7, 11.9, 12.6, 13.0, 13.2, 15.3, 15.4) have been analyzed with DWBA, the predictions depending strongly on the choice of the αparticle optical potential (1983HA32). See also Table 15.9 (in PDF or PS) in (1981AJ01), (1984GA11) and (1981KA04, 1983PI03; theor.).
Observed ^{3}He groups are displayed in Table 15.9 (in PDF or PS) of (1981AJ01). Comparisons of the angular distributions obtained in this reaction at E(^{6}Li) = 60.1 MeV and in the (^{6}Li, t) reaction shows analog correspondence for the following pairs of levels: 5.27  5.24, 7.16  6.86, 7.57  7.28, 8.57  8.28, 10.80  10.48, 13.15(u)  12.84, 15.49(u)  15.05 [first listed is E_{x} in ^{15}N, second in ^{15}O]. [E_{x} are nominal; u = unresolved.] For γdecay measurements see Table 15.5 (in PDF or PS). See also (1976AJ04) and (1983PI03; theor.).
Observed αgroups are shown in Table 15.10 (in PDF or PS). Angular distributions have been measured to E(^{7}Li) = 48 MeV. Comparison of spectra from this reaction (E(^{7}Li) = 34.9 MeV) with those from ^{13}C(^{6}Li, α) (reaction 27) lead to configurations of (d)^{3} for ^{15}N*(10.7, 12.57, 13.20, 15.42) and suggest that ^{15}N*(12.57, 13.20) have lower J than ^{15}N*(10.7, 15.5), probably J ≤ 7/2. ^{15}N*(13.02) is shown to be p(d)^{2} in agreement with J^{π} = 11/2^{}: see (1981AJ01). ^{15}N*(9.155) [J^{π} = 5/2] decays to ^{15}N*(5.30)[J^{π} = 1/2^{+}] by an E2 transition; therefore its parity is positive. It has a large triton cluster parentage. This is not true of ^{15}N*(9.152): see (1981AJ01). For γdecay measurements see Table 15.5 (in PDF or PS). For τ_{m} measurements see Table 15.6 (in PDF or PS). See also (1983PI03; theor.).
See (1981AJ01). See also (1983DEZW).
The 90°  95° yields of γ_{0} have been measured for E_{d} = 1 to 10 MeV: observed resonances are displayed in Table 15.11 (in PDF or PS). The γray angular distributions are consistent with the emission of predominantly E1 radiation except for evidence of M1/E2 transitions in the region E_{x} = 20  21.5 MeV: see (1981AJ01).
Observed resonances are displayed in Table 15.11 (in PDF or PS). Polarization measurements have been carried out at E_{pol. d} = 12.3 MeV (1983LIZW) for reaction (a) and at E_{pol. d} = 13 MeV [see (1981AJ01)] and 56 MeV (1984HA26; p_{0}) for reaction (b).
Excitation functions for elastically scattered deuterons have been measured in the range E_{d} = 0.4 to 5.7 MeV: see (1976AJ04). Polarization studies are reported for E_{d} = 12.5 to 15 MeV [see (1981AJ01)] and at E_{pol. d} = 56 MeV (1984HA26; d_{0}). See also (1980BO31; 3.1 GeV).
Observed resonances are listed in Table 15.11 (in PDF or PS). For polarization measurements to E_{pol. d} = 29 MeV [reactions (a, b)] see (1981AJ01).
Observed proton groups and γrays are listed in Table 15.11 (in PDF or PS) of (1981AJ01). Gammaray branching ratios are displayed in Table 15.5 (in PDF or PS) and τ_{m} in Table 15.6 (in PDF or PS). Angular distributions have been reported for E(^{3}He) = 4.37 to 20 MeV: see (1981AJ01). The gfactor for ^{15}N*(5.27)[J^{π} = 5/2^{+}] is +(0.9 ± 0.3). See also ^{16}O in (1982AJ01) and (1976AJ04).
At E_{α} = 34.9 MeV a ZRDWBA analysis has been made of the angular distributions to ^{15}N*(5.27, 5.30, 7.16, 7.30, 7.56, 8.31, 8.57, 9.05, 9.15, 10.07, 10.53, 10.69, 11.43, 11.94, 12.10, 12.33, 12.49, 12.56, 13.00, 13.83, 14.08). L = 0 for the group(s) to ^{15}N*(9.15, 10.69); L = 2 for ^{15}N*(12.56); L = 3 for ^{15}N*(5.27, 7.16, 7.56); L = 4 for ^{15}N*(11.94, 13.00); L = 1 fopr the remaining transitions (1984YA03). See also Table 15.11 (in PDF or PS) of (1976AJ04).
Angular distributions have been measured at E(^{6}Li) = 32 MeV to ^{15}N*(0, 5.30, 6.32, 7.16, 7.30, 7.57, 8.31, 8.57, 9.15, 9.23, 9.83, 10.07, 10.70, 11.94, 13.00): the results are consistent with the previously known J^{π}, with (odd) parity for ^{15}N*(9.83) and with J^{π} = 9/2^{} for ^{15}N*(11.94): see (1981AJ01).
For reaction (a) see (1983DEZW). At E(^{11}B) = 114 MeV the dominant group is ^{15}N*(13.00): see (1981AJ01).
See (1981AJ01).
Observed resonances are displayed in Table 15.12 (in PDF or PS); the branching ratios are shown in Table 15.5 (in PDF or PS). Narrow anomalies (in the γ_{0} yield for E_{p} = 2.8 to 30 MeV) are reported at E_{p} = 10.0, 11.0, 12.35, 13.6, 16.4 MeV. A good fit to the total cross section (E_{pol. p} = 7.5 to 19 MeV) is obtained with the GDR split into peaks at E_{x} = 21.0 and 25.5 MeV with Γ = 6 and 2 MeV, respectively. The integrated E2 cross section for E_{x} = 19.5 to 27.0 MeV is (6.8 ± 1.4)% of the isoscalar sum rule. The reaction thus shows no sign of a collective E2 resonance in that E_{x} region. [Another study shows no appreciable E2 strength concentration for E_{x} = 14.3 to 23.3 MeV.] Above the GDR region the 90° γ_{0} cross section decreases smoothly with energy except for a small peak which would correspond to ^{15}N*(37.). See (1981AJ01) for the references. See also (1984WA07) and (1980WE1D, 1982WE01).
Observed resonances and anomalies are displayed in Table 15.12 (in PDF or PS). Polarization measurements for reaction (a) have been reported for E_{p} = 1.79 to 13.3 MeV [see (1981AJ01)] and at E_{pol. p} = 120 and 160 MeV (1981GOZX, 1982MAZZ) and for reaction (b) at E_{p} = 3.2 to 5.7 MeV [see (1981AJ01)] and at E_{pol. p} = 25 and 35 MeV (1984BAZZ, 1985BAZZ). See also (1984TA02) and ^{14}C, ^{14}N.
Angular distributions have been measured for E_{d} = 1.3 to 6.5 MeV: see (1976AJ04). See also (1983CR1A).
Angular distributions have been studied at E(^{3}He) = 23 MeV to ^{15}N*(0, 5.27+5.30, 6.32, 7.16, 7.30): see (1981AJ01). See also (1976AJ04).
Angular distributions to ^{15}N_{g.s.} have been studied at E(^{16}O) = 20, 25 and 30 MeV: see (1976AJ04). See also (1981KO07; yields).
Q_{0} = 10833.343 ± 0.009 keV (1983KE11). [However values of E_{γ} obtained by (1983KE11) [see Table 15.13 (in PDF or PS)] are based on Q_{0} = 10833.302 keV: see (1983CO09).] The thermal cross section is 77.2 ± 2.1 mb (1981IS07). See also (1981MUZQ). This large cross section is not understood in terms of the level structure in ^{15}N: see (1959AJ76). Observed γrays are displayed in Table 15.13 (in PDF or PS). See also Tables 15.5 (in PDF or PS) and 15.6 (in PDF or PS). The 90° γ_{0} yield and angular distributions have been measured for E_{n} = 5.6 to 15.3 MeV. The cross section shows two prominent dips at E_{x} = 16.7 and 18.1 MeV [compare with ^{14}N(p, γ); reaction 11 in ^{15}O] and broad structures at E_{x} ≈ 17 and 19 MeV. The angular distribution data are consistent with essentially pure E1 radiation in the region E_{x} = 17 to 24 MeV (1982WE01). See also (1980WE1D).
The scattering amplitude (bound) a = 9.37 ± 0.03 fm, σ_{free} = 10.05 ± 0.12 b, σ^{spin}_{inc}(bound nucleus) = 0.49 ± 0.11 b (1979KO26). See also (1981MUZQ). Observed resonances are shown in Table 15.14 (in PDF or PS): for a discussion of the evidence leading to J^{π} assignments see (1959AJ76). Cross sections for production of γrays die to the decay of excited states of ^{14}N have been measured in the range E_{n} = 2 to 20 MeV: see (1976AJ04, 1981AJ01). Analyzing powers for the n_{0} group have been measured for E_{pol. n} = 5 → 17 MeV (1985ANZX). See also (1984TEZZ), (1982HA1A) and (1982DI1E; applied).
Cross sections have been measured for E_{n} = 10 to 37 MeV: see (1970AJ04, 1981AJ01). See also (1983CSZX).
The thermal cross section for reaction (a) is 1.83 ± 0.03 b (1981MUZQ). Reported resonances for reactions (a) and (d) are displayed in Table 15.14 (in PDF or PS). For a listing of crosssection measurements see (1981AJ01). See also (1981HAZJ, 1985BO1D).
Proton groups (and γrays) from this reaction are displayed in Table 15.15 (in PDF or PS) of (1981AJ01). The results include E_{x} = 7567.1 ± 1.0 keV for ^{15}N*(7.57). Angular distributions have been measured for E_{d} = 0.32 to 52 MeV and lead to l_{n}, J^{π} and spectroscopic factors: see Table 15.15 (in PDF or PS) in (1981AJ01). Branching ratios and multipolarities are shown in Table 15.5 (in PDF or PS); τ_{m} in Table 15.6 (in PDF or PS). See also (1982BE64; applied), (1978GR16; theor.) and ^{16}O in (1982AJ01).
See (1981AJ01) for reaction (a). For reaction (b) see (1985HA01) and ^{16}O in (1986AJ04).
See (1981AJ01).
At E(^{11}B) = 115 MeV and at E(^{13}C) = 105 MeV (1980PR09) have studied the transitions to ^{15}N*(0, 7.16, 7.57). See also (1981AJ01).
See (1981AJ01).
See reaction 1 in ^{15}C and Table 15.15 (in PDF or PS).
The total photoneutron cross section from threshold to 38 MeV shows a very broad GDR which extends from ≈ 16 to 30 MeV with a maximum σ ≈ 11 mb at 23.5 MeV. Most of the strength in the GDR goes via transitions to excited states of ^{14}N (1982JU03: monoenergetic photons). The (γ, n_{0}) cross section for E_{x} = 13 to 24 MeV shows a broad structure centered at E_{x} ≈ 14.5 MeV and a resonance at E_{x} = 17.3 ± 0.1 MeV. A large fraction of the photoabsorption strength leading to ^{14}N_{g.s.} is due to the formation of 3/2^{+}, T = 1/2 states in ^{15}N which decay by dwave emission. The absorption is essentially pure E1 (1983WA03). The total integrated cross section up to 35 MeV for transitions to excited states [^{14}N*(2.31, 3.95, 5.11 + 5.83, 7.03), ^{14}C*(6.09 + 6.59 + 6.90, 7.01), ^{12}C*(4.4)] is 44 MeV · mb. The nature of the transitions is such as to indicate a very strong (1p_{3/2})^{0}(1p_{1/2})^{3} component in ^{15}N_{g.s.}. The presence of T = 1/2 in the main giant resonance region is indiacted by strong population of ^{14}N*(7.03): see (1981AJ01). A study at E_{e} = 18.8, 20.8, 25.7 and 29.7 MeV (reaction (c)) shows a "pigmy" resonance at E_{x} = 14.8 MeV, a shoulder at 15.6 MeV, a peak at 16.7 MeV [probably 1/2^{+} but 3/2^{+} is not ruled out], and the giant dipole resonance, which exhibits a great deal of structure, centered at 22 MeV. The data on the pigmy resonance are consistent with an admixture of ≈ 1% 3/2^{}(E2) or 1/2^{}(M1) to a predominantly 1/2^{+}(E1) state. The experiment shows that for 14 < E_{x} < 28 MeV the reaction goes predominantly via 1/2^{+} or 3/2^{+}(E1) states in ^{15}N; the T = 3/2 strength is concentrated above 18 MeV. The cross section for d_{0} [reaction (d)] is reported at 90° for E_{γ} ≈ 20.5 to 28.5 MeV: a resonance is observed at E_{x} ≈ 21.9 MeV. The (γ, t_{0}) cross section (reaction (e)) at 90° decreases from a value of 30 μb/sr at 20 MeV to 5 μb/sr at 22 MeV and remains flat out to 25 MeV. Comparison of this cross section, and those of the other photonuclear reactions, suggests an isospin splitting of ≈ 6 MeV with the T = 1/2 strength concentrated between 16 and 21 MeV and the T = 3/2 strength between 21 and 28 MeV. ^{15}N*(21.9) is not observed. See (1981AJ01) for references.
See Table 15.16 (in PDF or PS) (1981MO09) and (1981AJ01).
The rms radius of ^{15}N is 2.580 ± 0.026 fm. Inelastic groups are displayed in Table 15.16 (in PDF or PS). The transverse form factors for the transitions to ^{15}N*(0, 6.32) have been measured at E_{e} = 70.4 to 326.7 MeV (1983SI11). The giant resonance is split into two main peaks at E_{x} = 22 and 25.5 MeV with some structure around 20 MeV. Γ_{γ0}(C1) = (1.1 ± 0.3) x 10^{3} eV (14  18.5 MeV), Γ_{γ0}(C2) = (12.5 ± 2.0) eV assuming the states responsible are 3/2^{+} and 3/2^{}, respectively. For E_{x} = 18.5 to 30 MeV, Γ_{γ0}(C1) = (1.96 ± 0.04) x 10^{4} eV while Γ_{γ0} < 0.1 eV for any C2 strength. See (1981AJ01) for references. See also (1984DO20) and (1981SU03, 1981SU08, 1982LIZW; theor.).
At E_{π±} = 164 MeV angular distributions have been studied to states at E_{x} = 10.68 ± 0.03, 12.52 ± 0.02, 14.04 ± 0.03 and 17.19 ± 0.03 MeV: J^{π} = 9/2^{+}, 9/2^{+}, (9/2^{+}, 7/2^{+}) and (9/2^{+}, 7/2^{+}), respectively, as well as to the ^{15}N_{g.s.}. Additional π^{+} cross sections were measured at 120 and 260 MeV: peaks were observed at E_{x} = 20.11 ± 0.06 and 23.19 ± 0.06 MeV [both are probably T = 3/2 states]. ^{15}N*(5.27, 6.32, 7.57) were also populated (1985SE06). See also (1984SAZU), (1982OS01; theor.) and the "GENERAL" section here.
See ^{16}N in (1982AJ01).
Angular distributions of elastically scattered protons have been measured at E_{p} to 44.2 MeV [see (1981AJ01)] and at E_{pol. p} = 2.8 to 7.0 MeV (1984DA18). See also ^{16}O in (1982AJ01, 1986AJ04).
Angular distributions of elastically scattered deuterons have been measured at E_{d} = 5  6 MeV. Elastic and inelastic ^{3}He distributions have been studied for E(^{3}He) = 11 to 39.8 MeV: see (1976AJ04).
At E_{α} = 40.5 MeV, a number of particle groups have been observed and angular distributions have been measured: see Table 15.17 (in PDF or PS) of (1976AJ04). See also (1981AJ01) for additional information.
The elastic scattering angular distribution has been measured at E(^{7}Li) = 28.8 MeV (1982WO09).
Angular distributions of elastic scattering have been measured at E(^{15}N) = 31.5 to 47 MeV for reaction (a) [see (1981AJ01)] and at E(^{13}C) = 105 MeV (1980PR09). The SFP (to ^{12}C*(4.4)) has been studied at E(^{15}N) = 94 MeV by (1981TA21). For fusion cross sections see (1981AJ01) and (1982NO12). See also (1983BI13, 1983DU13, 1984FR1A, 1984HA53) and (1982LO13, 1983CI08, 1983GO13; theor.).
Elastic angular distributions (reaction (a)) have been measured at E(^{16}O) = 35.1 and 42.6 MeV (1983SR01). For fusion cross sections see (1981VO01). See also (1976AJ04). For reaction (d) see (1976AJ04). See also (1983DU13) and (1981AB1A, 1982LO13, 1982OH05, 1982OK02, 1983CI08; theor.).
Elastic distributions (reaction (a)) have been measured in the range E(^{15}N) = 32.8 to 69.8 MeV (1980PR06; see also for fusion cross sections). An elastic distribution (reaction (b)) is reported at E(^{15}N) = 44 MeV: see (1981AJ01). See also (1983BI13, 1983DU13 [also scattering on ^{22}Ne, ^{26}Mg, ^{30}Si, ^{36}S], 1984FR1A, 1984HA53).
See ^{15}O.
Over the giant resonance region in ^{16}O, the decay takes place to the odd parity states ^{15}N*(0, 6.32) and less strongly o the even parity states ^{15}N*(5.27, 5.30, 8.31, 9.05) and to ^{15}N*(9.23): see (1970AJ04, 1976AJ04). At E_{e} = 500 MeV most of the 1p hole strength is concentrated in the groups to ^{15}N*(0, 6.32). The 1s state shows up as a very wide asymmetric structure centered at E_{x} ≈ 41 MeV: see (1981AJ01). In the range E_{γ} = 101.5 to 382 MeV differential cross sections are reported for the p_{0}, (p_{1+2}) and p_{3} groups at θ = 45°, 90° and 135° (1985LE07). Forward differential cross sections have been measured at E_{γ} = 80 MeV (1980SC27; p_{0}) and at E_{γ} = 200 MeV angular distributions have been studied by (1984AD1D, 1984TUZZ; p to ^{15}N*(5.3, 6.3); prelim.). ^{15}N*(0, 6.3) are populated at E_{e} = 128 MeV (1983VO1F; prelim.) and 500 MeV (1982BE02; also ^{15}N*(10.8)). See also (1980KH1C), (1980GO13, 1981GA1M, 1981WI1E, 1983TR1J, 1984WA1J) and (1981BO14, 1982BO28, 1983MA2B, 1985CO01; theor.).
Gamma rays from the decay of one of the states at 5.3 MeV and from ^{15}N*(6.3) are reported by (1983VA1E).
Angular distributions of the d_{0} group have been reported at E_{n} = 14 and 14.4 MeV: see (1976AJ04).
At E_{π±} = 240 MeV, the spectra are dominated by ^{15}N*(0, ≈ 6.5). The π^{+}/π^{} ratio has been measured for the ground state transitions (1984KY01). At E_{π+} = 2.0 GeV/c differential cross sections have been determined for the transition to ^{15}N*(6.3) (1983KI01). At E_{p} = 460 MeV, the summed proton spectrum shows two peaks corresponding to the knockout of p_{1/2} and p_{3/2} protons with binding energies of 12.4 and 19.0 MeV, respectively [^{15}N*(0, 6.32)]: see (1976AJ04). See also (1980MA28; theor.).
Angular distributions of ^{3}He groups have been measured for E_{d} = 20 to 82 MeV: see (1976AJ04, 1981AJ01). The spectra are dominated by the transitions to ^{15}N*(0, 6.32). A ZRDWBA analysis leads to C^{2}S = 2.25 and 3.25 for these two states [and to 2.37 and 3.31 for the analog states in ^{15}O studied with the (d, t) reaction]. J^{π} = 3/2^{} for both ^{15}N*(9.94, 10.71): see (1981AJ01). See also (1981MA14).
See (1970AJ04).
For reaction (a) see (1983DEZW). For reaction (b) see (1985WI18). The groundstate angular distribution has been studied at E(^{10}B) = 100 MeV. At E(^{11}B) = 115 MeV ^{15}N*(0, 6.32) are populated: see (1981AJ01).
See (1981AJ01). See also (1983OS08, 1984CL09; theor.).
At E_{p} = 39.8 MeV angular distributions of the groups to ^{15}N*(0, 6.32) have been compared with those to the analog states in ^{15}O reached in the (p, t) reaction: see (1976AJ04).
The cross section to ^{15}N_{g.s.} has been determined in the GDR region (1982BA03): see ^{18}O in (1983AJ01).
Angular distributions of α_{0} have been measured for E_{p} = 0.125 to 42.2 MeV: see (1976AJ04, 1981AJ01) and ^{19}F in (1983AJ01). τ_{m} = 2.49 ± 0.24 psec, g = 0.94 ± 0.07 for ^{15}N*(5.27) (1983BI10). See also (1983LI1T; applied).
See ^{19}F in (1983AJ01) and (1981AJ01).
Angular distributions involving ^{15}N*(0, 5.3, 6.3) have been measured in the range E_{d} = 9.0 to 28 MeV [see (1976AJ04, 1981AJ01)]. See also (1984GO1H; 50 MeV) and (1984NE1A).
See (1976AJ04).
