Exact form factors of the image Gross–Neveu model and image expansion Original Research Article

The general image form factor formula is constructed. Exact form factors for the field, the energy–momentum and the current operators are derived and compared with the image-expansion of the chiral Gross–Neveu model and full agreement is found. As an application of the form factor approach the equal time commutation rules of arbitrary local fields are derived and in general anyonic behavior is found.