The Untruncated Marinari-Parisi Superstring

It is shown that the bosonic angular degrees of freedom in the one dimensional Marinari-Parisi superstring can be integrated out exactly in the Hamiltonian formulation without having to perform the Dabholkar truncation. The resulting Hamiltonian is that of a supersymmetric Calogero system plus a four fermions interaction. This extra interaction vanishes for all physical states with fermion number zero or one where supersymmetry is manifest. We confirm that supersymmetry is nonperturbativly broken by instanton effects.