Flavor-singlet mesons in N_f=2+1 QCD with dynamical overlap quarks

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We report on our study of flavor-singlet mesons in three-flavor QCD with dynamical overlap quarks.

• Gauge ensembles are generated on a 16^3 x 48 lattice at a lattice spacing of 0.10 fm with the strange quark masses around its physical value m_s,phys and up and down quark masses down to m_s,phys/5.
• Connected and disconnected meson correlators are calculated using the all-to-all quark propagator.
• We present our preliminary results on the spectrum of flavor-singlet pseudoscalar and vector mesons.