The q-Deformed NJL Model "Revisited"
  In this work we investigate the chiral symmetry breaking in the q-deformed version of the NJL Model and its consequent mass generation mechanism . We show that the deformation of the NJL model, in the mean field approximation, may take into account correlations that go beyond the mean field and, in a certain limit, approaches the more realistic lattice calculations. 
S.S.Avancini, J.R.Marinelli, D.P.Menezes and M.M.Watanabe de Moraes