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arXiv · hep-ph/0308291

Scalar Particles in Lattice QCD

Teiji Kunihiro·Shin Muroya·Atushi Nakamura·Chiho Nonaka·Motoo Sekiguchi·Hiroaki Wada
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Abstract

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, $m_π<m_σ\le m_ρ$, for which the disconnected diagram plays an important role. For the kappa meson, we obtain higher mass than the experimental value, i.e., $m_κ\sim 2m_{K^*}$.

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Teiji Kunihiro, Shin Muroya, Atushi Nakamura, Chiho Nonaka, Motoo Sekiguchi, Hiroaki Wada. 2003-08-28. Scalar Particles in Lattice QCD. https://doi.org/10.1103/physrevd.70.034504

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