  We investigate the 2-flavour Schwinger model in the canonical formulation
with fixed fermion numbers. We use Wilson fermions and a formalism which
describes the determinant of the Dirac operator in terms of dimensionally
reduced canonical transfer matrices. These transfer matrices allow the direct
examination of arbitrary multi-particle (meson) sectors and the determination
of the corresponding ground-state energies. We discuss the finite-volume
effects in the meson mass. From the 2-meson energies, we determine the
scattering phase shifts and compare the 3-meson energies at finite volume to
predictions based on 3-particle quantization conditions.
