Insight into the scaler mesons from a lattice calculation

被引：216

作者：

Alford, M ^{[1
]}

Jaffe, RL

机构：

[1] MIT, Ctr Theoret Phys, Nucl Sci Lab, Cambridge, MA 02139 USA

[2] MIT, Dept Phys, Cambridge, MA 02139 USA

来源：

NUCLEAR PHYSICS B | 2000年 / 578卷 / 1-2期

关键词：

D O I：

10.1016/S0550-3213(00)00155-3

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We study the possibility that the light scalar mesons are (q) over bar(2)q(2) states rather than (q) over bar q. We perform a lattice QCD calculation of pseudoscalar meson scattering amplitudes, ignoring quark loops and quark annihilation, and find indications that for sufficiently heavy quarks there is a stable four-quark bound state with J(PC) = 0(++) and non-exotic flavor quantum numbers. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：367 / 382

页数：16

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