K_l3 form factor with two-flavors of dynamical domain-wall quarks
  We report on our calculation of K \to \pi vector form factor by numerical simulations of two-flavor QCD on a 16^3x32x12 lattice at a \simeq 0.12 fm using domain-wall quarks and DBW2 glue. Our preliminary result at a single sea quark mass correponding to m_PS/m_V \simeq 0.53 shows a good agreement with previous estimate in quenched QCD and that from a phenomenological model. 
C.Dawson, T.Izubuchi, T.Kaneko, S.Sasaki, A.Soni