Determination of the renormalized heavy-quark mass in lattice QCD

被引：19

作者：

Bochkarev, A ^{[1
]}

deForcrand, P ^{[1
]}

机构：

[1] ETH ZENTRUM, IPS, CH-8092 ZURICH, SWITZERLAND

来源：

NUCLEAR PHYSICS B | 1996年 / 477卷 / 02期

关键词：

QCD; lattice; heavy quark; charm; sum rules;

D O I：

10.1016/0550-3213(96)00396-3

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 on the lattice the correlator of heavy-quark currents in the vicinity of vanishing momentum. The renormalized charmed quark mass, the renormalized strong coupling constant and gluon condensate can be defined in terms of the derivatives of that correlator at zero momentum, We analyze quenched Monte Carlo data on a small 8(3) x 16 lattice for beta = 6. We generalize dispersion relations to the lattice theory in a simple way and use them successfully to fit both the short-distance part and long-distance part of the correlator in such a small volume.

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收藏

页码：489 / 520

页数：32

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