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GENERAL: See also (77AJ02) and Table 16.27 [Table of Energy Levels] (in PDF or PS).

Theoretical work: (GU78D, SP78, LI81H).

Reviews: (CE77C, AL79K, TR80D).

Mass of ¹⁶Ne: The Q-values of the ²⁰Ne(α, ⁸He) and ¹⁶O(π⁺, π^-) reactions lead to an atomic mass excess of 24.02 ± 0.04 MeV for ¹⁶Ne. ¹⁶Ne is then unbound with respect to decay into ¹⁴O + 2p by 1.43 MeV and is bound with respect to decay into ¹⁵F + p by 0.04 MeV.

1. 16O(π+, π-)16Ne	Qm = -28.76
	Q0 = -28.785 ± 0.045 MeV (BU80B).

At E_π⁺ = 180 MeV ¹⁶Ne_g.s. is populated. The cubic factor, d, in the IMME is calculated to be 2.5 ± 3.7 keV based on Q₀ (BU80B). See also (HO77F, BU78E, MI80D, GR81A, GR81C).

2. 20Ne(α, 8He)16Ne	Qm = -60.23
	Q0 = -60.15 ± 0.08 MeV.

At E_α ~ 117.5 MeV, ¹⁶Ne*(0, 1.69 ± 0.07) are populated, the former with a differential cross section of 5 ± 3 nb/sr at 8°(lab). The Γ_c.m. for the ground state group is 200 ± 100 keV; applying penetrability corrections leads to a total decay width of 5 - 100 keV. The di-proton branching ratio is 10 - 90%, with the most probable value being 20%. The cubic term, d, in the IMME is 8 ± 5 keV, 15 ± 6 keV based, respectively, on the masses of ¹⁶Ne*(0, 1.69). The first T = 2 states in ¹⁶F [0⁺, 2⁺] are predicted to lie at E_x = 10.08 ± 0.02 and 11.87 ± 0.03 MeV (KE78C).