Scalar mesons in lattice QCD

被引：97

作者：

Kunihiro, T ^{[1
]}

Muroya, S

Nakamura, A

Nonaka, C

Sekiguchi, M

Wada, H

机构：

[1] Kyoto Univ, Yukawa Inst Theoret Phys, Kyoto 6068502, Japan

[2] Tokuyama Womens Coll, Shunan 7458511, Japan

[3] Duke Univ, Dept Phys, Durham, NC 27708 USA

[4] Kokushikan Univ, Fac Engn, Tokyo 1548515, Japan

[5] Nihon Univ, Coll Sci & Technol, Phys Lab, Chiba 2748501, Japan

[6] Hiroshima Univ, RIISE, Higashihiroshima 7398521, Japan

来源：

PHYSICAL REVIEW D | 2004年 / 70卷 / 03期

关键词：

D O I：

10.1103/PhysRevD.70.034504

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We explore whether "f(0)(600) or sigma" exists as a pole in QCD, by a full lattice QCD simulation on the 8(3)x16 lattice using the plaquette action and Wilson fermions. It is shown that there exists a sigma pole, whose mass is as low as that of the rho, owing to the disconnected diagram of the meson propagator. A discussion is given on the physical content of the sigma.

引用

页数：4

共 32 条

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