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GENERAL: See Table 20.1 [Table of Energy Levels] (in PDF or PS).

Model calulations:(BR59M, TA60L, TA62, PA63C, CO64B, MO64M, PA64C, TR64A, DE65B, FE65B, AR66H, BR66C, TR66, FE67A, FL67D, LA67N, PI67B, AR68C, BE68DD, CO68K, FL68B, GU68A, HA68H, HA68T, MO68A, PA68K, FE69C, KU69G, SO69A, AR71L).

Other theoretical calculations:(JA61L, KE66C, ST67G, SU68D, SC69F, LA71C, LE71I).

General experimental work:(AR69E, AR71, AR71M).

1. 20O(β-)20F

Qm = 3.815

²⁰O decays to ²⁰F*(1.06) [J^π = 1⁺] with a half-life of 13.57 ± 0.1 sec (MA70G), 13.6 ± 1.0 sec (SC60). Using E_β(max) = 2.76 MeV and τ_1/2 = 13.57 ± 0.1 sec, log ft = 3.73. Upper limits for the branching to other states of ²⁰F are shown in Table 20.2 (in PDF or PS) (MA70G). See also (AM59A) and (TH57, AN70G, MC70S; theor.).

2. 18O(t, p)20O	Qm = 3.079
	Q0 = 3.086 ± 0.015 (JA60C);
	Q0 = 3.076 ± 0.010 (HI62C).

Observed proton groups are displayed in Table 20.3 (in PDF or PS): angular distributions lead to the L and J^π values shown (JA60C, HI62C, MI64F, MO65I). The J = 2 assignment for ²⁰O*(1.67) is confirmed by the angular correlation of the 1.67 MeV γ-rays (NI70A). See also (JA59, CH67P, BA69GG) and (TR64A, TR66, DO67C; theor.).

3. 18O(18O, 16O)20O

Qm = -0.628

See (MA70G).