Information on mass chains and nuclides available on this website:

WWW TUNL

GENERAL: See (83AJ01) and Table 18.2 [Table of Energy Levels] (in PDF or PS).

See (NA81H, AN83D, FR83G, SH83DD, WI83H, AS84D, HI84, AN86U, BI86F, HA86BB, MA86CC, ME86C, RI87B).

Mass of ¹⁸N:The atomic mass excess derived from the Q-value of the ¹⁸O(⁷Li, ⁷Be)¹⁸N reaction is 13.117 ± 0.020 MeV (PU83). ¹⁸N is then stable with respect to breakup into ¹⁷N + n by 2.825 MeV. See (83AJ01) for the earlier work.

1. 18N(β-)18O

Qm = 13.899

The half-life of ¹⁸N is 0.624 ± 0.012 sec (OL82). The decay branches are displayed in Table 18.9 (in PDF or PS). The nature of the decay leads to J^π = 1^- for the ¹⁸N ground state (OL82). See also (SN83A).

2. 14C(7Li, 3He)18N

Qm = -10.122

The work described in (83AJ01) has not been published.

3. 14C(18O, 14N)18N

Qm = -13.743

At E(¹⁸O) = 92.2 MeV groups are observed to the ground state of ¹⁸N (unresolved) and to an excited state at E_x = 575 ± 25 keV (NA80).

4. 18O(π-, π0)18N

Qm = -9.295

See (AS84A, AS83).

5. 18O(t, 3He)18N

Qm = -13.881

See (83AJ01).

6. 18O(7Li, 7Be)18N	Qm = -14.761
	Q0 = -14761 ± 20 keV (PU83).

At E(⁷Li) = 52 MeV, ⁷Be groups are observed corresponding to the excitation of the states displayed in Table 18.2 (in PDF or PS) (PU83).

7. 18O(11B, 11C)18N

Qm = -15.881

See (PU83).