Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
1993-07-04
Physics
High Energy Physics
High Energy Physics - Lattice
WIS-93/57-JULY-PH, LaTeX, 24 pages
Scientific paper
10.1016/0920-5632(94)90454-5
We consider interacting theories with a compact internal symmetry group on a regular lattice. We show that the spectrum is necessarily vector-like provided the following conditions are satisfied: (a)~weak form of locality, (b)~relativistic continuum limit without massless bosons, and (c)~pole-free effective vertex functions for conserved currents. The proof exploits the zero frequency inverse retarded propagator of an appropriate set of interpolating fields as an effective quadratic hamiltonian, to which the Nielsen-Ninomiya theorem is applied. The main results of this paper have been reported in WIS-93/56-JUNE-PH, hep-lat/9306023.
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