The Bethe-Salpeter equation in superfield theory

A study of the supersymmetric analogue of the Wick-Cutkosky model shows that the system resembles more closely the Goldstein model for a fermion-antifermion composite. The eigenvalue problem for the <i>p</i> = 0 superstates is solved and the more difficult case of <i>p</i>² > 0 is discussed.