Scaling of the Y spectrum in lattice nonrelativistic QCD

被引：51

作者：

Davies, CTH ^{[1
]}

Lidsey, A

McCallum, P

Hornbostel, K

Lepage, GP

Shigemitsu, J

Sloan, J

机构：

[1] Univ Glasgow, Glasgow G12 8QQ, Lanark, Scotland

[2] So Methodist Univ, Dallas, TX 75275 USA

[3] Cornell Univ, Newman Lab Nucl Studies, Ithaca, NY 14853 USA

[4] Univ Kentucky, Lexington, KY 40506 USA

来源：

PHYSICAL REVIEW D | 1998年 / 58卷 / 05期

关键词：

D O I：

10.1103/PhysRevD.58.054505

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present results for the spectrum of bb bound states in the quenched approximation for three different values of the lattice spacing, in the range 0.05 fm to 0.15 fm. We find our results for spin-independent splittings in physical units to be independent of the lattice spacing, indicating the absence of systematic errors from discretization effects. Spin-dependent splittings are more sensitive to the lattice spacing and higher order corrections to the action; we discuss the size of these effects and what can be done to arrive at a physical result. [S0556-2821(98)00217-3]

引用

页数：13

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