Spontaneous Symmetry Breaking of Gauge Supersymmetry

Spontaneous symmetry breaking of gauge supersymmetry to global supersymmetry is seen to determine in part the internal-symmetry gauge group through the equations $R_{\mathrm{AB}}=\lambda g_{\mathrm{AB}}$. For the case $\lambda \ne 0$ the determination is complete, the resultant group being the U(1) Maxwell-Einstein coordinate group. For $\lambda =0\mathrm{}$, spontaneous breaking automatically requires parity breakdown in the vacuum, and is consistent with SU(2) ⊗ U(10 ⊗ color.