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

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

2009-10-29

arxiv.org/abs/0910.5532v1

PoS LAT2009:096,2009

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, 6 figures, talk presented at The XXVII International Symposium on Lattice Field Theory - LAT2009, July 26-31 2009, Pe

Scientific paper

We present an update of the light meson spectrum with $N_f$=2+1 overlap fermions on a $16^3\times 48$ 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.

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