Scalar Particles in Lattice QCD
Kunihiro, Teiji · Muroya, Shin · Nakamura, Atushi · Nonaka, Chiho · Sekiguchi, Motoo · Wada, Hiroaki
Original · EN
We report a project to study scalar particles by lattice QCD simulations. After a brief introduction of the current situation of lattice study of the sigma meson, we describe our numerical simulations of scalar mesons, σ and κ. We observe a low sigma mass, mπ<mσ≤ mρ, for which the disconnected diagram plays an important role. For the kappa meson, we obtain higher mass than the experimental value, i.e., mκ 2mₖ*.
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