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arXiv · hep-lat/0702023

Lattice Study of Low-lying Nonet Scalar Mesons in Quenched Approximation

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

Using lattice QCD simulation in the quenched approximation, we study the $κ$ meson, which is ^3P_0 in the quark model, and compare experimental and other lattice data. The $κ$ is the lowest scalar meson with strangeness and constitutes the scalar nonet. The obtained mass is much higher than the recent experimental value, and therefore the $κ(800)$ is difficult to consider as a simple two-body constituent-quark structure, and may have another unconventional structure.

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Hiroaki Wada, Teiji Kunihiro, Shin Muroya, Atsushi Nakamura, Chiho Nonaka, Motoo Sekiguchi. 2007-08-05. Lattice Study of Low-lying Nonet Scalar Mesons in Quenched Approximation. https://doi.org/10.1016/j.physletb.2007.06.076

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