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Mass of ⁸C: The atomic mass excess of ⁸C is 35096 ± 26 keV, Γ_c.m. = 230 ± 50 keV: see (1977TR07). See also (1974AJ01, 1974RO17, 1976TR01, 1978RO01). ⁸C is stable with respect to ⁷B + p (Q = -0.13 MeV) and unstable with respect to ⁶Be + 2p (Q = 2.143), ⁵Li + 3p (Q = 1.55), ⁴He + 4p (Q = 3.514). At E(³He) = 76 MeV the differential cross section for formation of ⁸C_g.s. in the ¹⁴N(³He, ⁹Li) reaction is ≈ 5 nb/sr at θ_lab = 10° (1976RO04). The ¹²C(α, ⁸He)⁸C reaction has been studied at E_α = 156 MeV: dσ/dΩ ≈ 20 nb/sr at θ_lab = 20° (1974RO17). See also (1976RO1M) and (1974IR04, 1975BE31, 1976IR1B; theor.)