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Title: Global chiral-invariant formulation of lattice gauge theory

Journal Article · · Physical Review, D (Particles Fields); (USA)
 [1];  [2]; ;  [1]
  1. Departemento de Fisica Teorica, Facultad de Ciencias, Universidad de Zaragoza, 50009 Zaragoza, Spain (ES)
  2. Laboratoire de Physique Theorique et Hautes Energies, Universite de Paris XI, Batiment 211, 91405 Orsay CEDEX, France (FR)

A global chiral-invariant lattice fermionic action which solves the species-doubling problem of free Dirac fermions on a lattice for (even) dimensions of space-time less than 8 is systematically studied in perturbation theory in two space-time dimensions when a gauge interaction is present. The decoupling of the replica fermions requires one to give up gauge symmetry for a finite lattice spacing but the quantum continuum limit is gauge invariant and reproduces the results of the continuum Schwinger model with one flavor.

OSTI ID:
7165627
Journal Information:
Physical Review, D (Particles Fields); (USA), Vol. 40:12; ISSN 0556-2821
Country of Publication:
United States
Language:
English