Heavy-heavy-light quark potential in SU(3) lattice QCD

被引：12

作者：

Yamamoto, Arata ^{[1
]}

Suganuma, Hideo ^{[1
]}

Iida, Hideaki ^{[2
]}

机构：

[1] Kyoto Univ, Fac Sci, Dept Phys, Kyoto 6068502, Japan

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

来源：

PHYSICS LETTERS B | 2008年 / 664卷 / 1-2期

关键词：

lattice QCD; confinement; inter-quark potential; heavy-light hadrons;

D O I：

10.1016/j.physletb.2008.05.013

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We perform the first study for the heavy-heavy-light quark (QQq) potential in SU(3) quenched lattice QCD with the Coulomb gauge. The calculations are done with the standard gauge and O(a)-improved Wilson fermion action on the 16(4) lattice at beta = 6.0. We calculate the energy of QQq systems as the function of the distance R between the two heavy quarks, and find that the QQq potential is well described with a Coulomb plus linear potential form up to the intermediate distance R <= 0.8 fm. Compared to the static three-quark case, the effective string tension between the heavy quarks is significantly reduced by the finite-mass valence quark effect. This reduction is considered to be a general property for baryons. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：129 / 132

页数：4

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