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16B (1993TI07)

(Not illustrated)

This nucleus has not been observed in the 4.8 GeV proton bombardment of a uranium target. It is particle unstable. Its mass excess is predicted to be 37.97 MeV; it would then be unstable with respect to decay into 15B + n by 0.93 MeV. See (1985WA02, 1986AJ04). The ground state is predicted to have Jπ = 0- and the first three excited states are predicted to lie at 0.95, 1.10, and 1.55 MeV [Jπ = 2-, 3-, 4-] in a (0 + 1)ℏω space shell model calculation. See (1983ANZQ, 1985PO10, 1986AJ04). Predicted masses and excitation energies for higher isospin multiplets for 9 ≤ A ≤ 60 are included in the compilation (1986AN07). An experiment (1985LA03) involving in-flight identification of fragments from 44 MeV/u 40Ar found no trace of 18B or 16B and provides strong evidence that 16B is particle-unstable.