This paper is a continuation of an earlier study of the ground-state energy density $E_0$ in two-dimensional supersymmetric field theories. Lattice strong-coupling techniques are used to calculate $E_0$ to eleventh order, extending the previous calculation by four additional orders. Our results continue to suggest that supersymmetry invariance is restored in the continuum limit. Moreover, new and unexpected large-order behavior in the lattice perturbation-expansion coefficients is revealed in this high order of perturbation theory.

• Received 3 May 1985

DOI:https://doi.org/10.1103/PhysRevLett.54.2481