Trace and chiral anomalies in string and ordinary field theory from Feynman diagrams for nonlinear sigma models

Agapitos Hatzinikitas, Koenraad Schalm, Peter van Nieuwenhuizen

We write general one-loop anomalies of string field theory as path integrals on a torus for the corresponding nonlinear sigma model. This extends the work of Alvarez-Gaumé and Witt…