Energy Levels of Light Nuclei A = 14 - Triangle Universities Nuclear ...

56. (a) 14 N( 24 Mg, 24 Mg) 14 N
(b) 14 N( 26 Mg, 26 Mg) 14 N
(c) 14 N( 27 Al, 27 Al) 14 N
(d) 14 N( 28 Si, 28 Si) 14 N
(e) 14 N( 40 Ca, 40 Ca) 14 N
(f) 14 N( 48 Ca, 48 Ca) 14 N
Elastic angular distributions have been measured at E( 14 N) ≈ 53 MeV for reactions (a), (c) and
(d)[see(86AJ01)] and at 84 MeV (88YA06; reaction (d); also inelastic to 28 Si*(1.78)). For fusion
and fragmentation studies see (86AJ01)and(86SH25, 87BE55, 87GU1M, 87ST01, 87YI1A, 88SH03,
89BR1K, 90GOZZ). For reaction (e), see also (88GO12). For pion production [reaction (c)], see
(86ST03). See also (87SH1A), (87BL1D) and(85BL17, 85CE11, 85ST20, 86OS05, 86POZW,
86PR01, 88AY03, 89BH1A, 89CH1K; theor.).
57. 14 O(β + ) 14 N Q m =5.1431
14 O g.s. decays predominantly to its analog state 14 N*(2.31): E x = 2312.798 ± 0.011 keV
(82WA1D): see reaction 1 in 14 O. See also (89AM01; theor.).
58. 15 N(γ, n) 14 N Q m = −10.8333
See (88MC01) in 15 N. See also (81AJ01) and(88GOZM; theor.).
59. 15 N(p, d) 14 N Q m = −8.6087
Angular distributions have been obtained at E p =39.8 MeV for the deuterons corresponding to
14 N*(0 → 8.06, 8.62, 8.91, 8.96+8.98, 9.17, 9.39, 9.51, 9.70, 10.10, 10.21, 10.43, 11.06, 11.23+11.30,
11.39, 11.51, 11.66, 11.74 + 11.80, 11.97, 12.21 + 12.29, 12.52, 12.61, 12.80 + 12.83, 13.17 + 13.23,
13.72). Spectroscopic factors were extracted by DWBA analysis of the l n = 1 pickup angular
distributions: see (69SN04). See also (70AJ04).
60. 15 N(d, t) 14 N Q m = −4.5760
At E ⃗d =89.1 MeV(89SA13) have investigated the level structure of 14 NuptoE x = 24 MeV: see
Table 14.21. AboveE x =18.6 MeV no discrete states appear. The observed summed spectroscopic
strength is 88% of the shell-model sum rule. No significant l = 3 strength was seen (89SA13).
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