Approximate Bogomol’nyi-Prasad-Sommerfield States

We consider dimensionally reduced three-dimensional supersymmetric Yang-Mills–Chern-Simons theory. Although the [Formula presented] supersymmetry of this theory does not allow local massive Bogomol’nyi-Prasad-Sommerfield (BPS) states, we find approximate BPS states which have nonzero masses that are almost independent of the Yang-Mills coupling constant and which are a reflection of the massless BPS states of the underlying [Formula presented] super–Yang-Mills theory. The masses of these states at large Yang-Mills coupling are exactly at the [Formula presented]-particle continuum thresholds. This leads to a relation between their masses at zero and large Yang-Mills coupling.