Abstract
The minimal-energy solution of the SU(2) Skyrme model with baryon number three is a soliton with tetrahedral symmetry 4¯3m. Given one assumption, I show how this symmetry ensures that the Jπ=1/2+ isodoublet nucleus (3He,3H) emerges as the unique ground state of this soliton solution when its isospin and rotational zero modes are quantized.

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