An estimate of the chiral condensate from unquenched lattice QCD
  Using the parameters in the chiral Lagrangian obtained by MILC from their unquenched lattice QCD calculations with 2+1 flavours of sea quarks, I estimate <psi_bar psi> (2 GeV)/n_f = -(259 \pm 27 MeV)**3 in the MS_bar scheme. I compare this value to other determinations. 
Craig McNeile