出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We study lattice formulations of the two-dimensional N = 2 Wess-Zumino model with a cubic
superpotential. Discretizations with and without lattice supersymmetries are compared. We
observe that the “Nicolai improvement” introduces new problems to simulations of the supersymmetric
model. With high statistics we check the degeneracy of bosonic and fermionic masses on
the lattice. Perturbative mass corrections to one-loop order are compared with continuum extrapolations
of our lattice results in the weakly coupled regime. For intermediate couplings first results
of fermionic masses in the continuum are presented where deviations from the perturbative result
are observed.
