Static three-quark SU(3) and four-quark SU(4) potentials

被引：93

作者：

Alexandrou, C ^{[1
]}

de Forcrand, P

Tsapalis, A

机构：

[1] Univ Cyprus, Dept Phys, CY-1678 Nicosia, Cyprus

[2] ETH Honggerberg, Inst Theoret Phys, CH-8093 Zurich, Switzerland

[3] CERN, Div Theory, CH-1211 Geneva 23, Switzerland

[4] Univ Athens, Dept Phys, Athens, Greece

来源：

PHYSICAL REVIEW D | 2002年 / 65卷 / 05期

关键词：

D O I：

10.1103/PhysRevD.65.054503

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present results on the static three- and four-quark potentials in SU(3) and SU(4), respectively, within quenched lattice QCD. We use an analytic multihit procedure for the time links and a variational approach to determine the ground state, The three- and four-quark potentials extracted are consistent with a sum of two-body potentials, possibly with a weak many-body component at larger distances. For quark separations up to similar to1.2 fm where the results are most accurate, we find support for the Delta Ansatz for the baryonic area law.

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