Excited State Spectroscopy in the Lattice Gross-Neveu Model

Abstract

We present preliminary results of an excited state spectroscopy calculation in the 2-d lattice Gross-Neveu model. We address the construction of suitable interpolators for the variational method and their overlap with excitations. We comment on the role of the eigenvectors as a tool for matching scattering states on lattices with different volumes.

Comments: 7 pages, presented at the XXV International Symposium on Lattice Field Theory, July 30 - August 4 2007, Regensburg