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

The photon spectrum from stopped pions is dominated by peaks corresponding to 14 C*(6.7+
6.9+7.0[u], 8.32, 10.7) and branching ratios have been obtained for these and the g.s. transition.
That to 14 C*(6.7+6.9+7.0) is (6.22±0.40)% (absolute branching ratio per stopped pion) (86PE05).
Fortheearlierworksee(81AJ01). See also the “General” section.
33. 14 N(n, p) 14 C Q m =0.6259
The p 0 angular distribution has been measured at E n = 14 MeV: see (81AJ01). At E n =60
MeV the stongest transitions are to 14 C*(7.0 +8.3, 11.3, 15.4) and to the giant resonanace peak,
centered at ≈ 20.4 MeV, and angular distributions have been studied to these groups: see (86AJ01).
For cross sections of astrophysical interest see 15 N. A study of P-odd and left-right asymmetries
with polarized thermal neutrons is reported by (88AN19). See also (86BO1K, 88EL1C; applied).
34. 14 N(d, 2p) 14 C Q m = −1.5987
Angular distributions have been measured at E ⃗d =70MeVto 14 C*(7.0[u], 8.3). The ground
state is very weakly populated (86MO27). See also (88HE1I).
35. 14 N(t, 3 He) 14 C Q m = −0.13788
At E t =33.4 MeV 14 C*(0, 6.09, 6.73, 7.34, 8.32) are populated (88CL04).
36. 14 N( 7 Li, 7 Be) 14 C Q m = −1.018
See (86GO1B; prelim.; E( 14 N) = 150 MeV).
37. 15 N(γ, p) 14 C Q m = −10.2074
See (81AJ01), 15 Nand(88GOZM; theor.).
38. 15 N(d, 3 He) 14 C Q m = −4.7139
The parameters of 14 C states observed in this reaction are displayed in Table 14.9 of (76AJ04).
39. 16 O( 6 Li, 8 B) 14 C Q m = −16.592
At E( 6 Li) = 93 MeV 14 C*(0, 7.01, 8.32, 10.45) are populated, the first two of these strongly:
see (81AJ01).
26