Chiral properties of light mesons with N_f=2+1 overlap fermions

We present an update of the light meson spectrum with N_f=2+1 overlap fermions on a 16^3× 48 lattice at five different up and down quark masses and two strange quark masses. Based on our experience with the previous simulation with N_f=2, we carry out the chiral extrapolation with the prediction of the chiral perturbation theory at the next-to-next-to leading order. We also check the consistency of our analysis by using alternative chiral extrapolation with a reduced theory in which the strange quark mass is integrated out.