High-precision lattice QCD confronts experiment

被引：266

作者：

Davies, CTH ^{[1
]}

Follana, E

Gray, A

Lepage, GP

Mason, Q

Nobes, M

Shigemitsu, J

Trottier, HD

Wingate, M

Aubin, C

Bernard, C

Burch, T

DeTar, C

Gottlieb, S

Gregory, EB

Heller, UM

Hetrick, JE

Osborn, J

Sugar, R

Toussaint, D

Di Pierro, M

El-Khadra, A

Kronfeld, AS

Mackenzie, PB

Menscher, D

Simone, J

机构：

[1] Univ Glasgow, Dept Phys & Astron, Glasgow, Lanark, Scotland

[2] Cornell Univ, Lab Elementary Particle Phys, Ithaca, NY 14853 USA

[3] Simon Fraser Univ, Dept Phys, Vancouver, BC, Canada

[4] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA

[5] Washington Univ, Dept Phys, St Louis, MO 63130 USA

[6] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA

[7] Univ Utah, Dept Phys, Salt Lake City, UT 84112 USA

[8] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA

[9] Amer Phys Soc, Ridge, NY 11961 USA

[10] Univ Pacific, Stockton, CA 95211 USA

[11] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

[12] DePaul Univ, Sch Comp Sci Telecommun & Informat Syst, Chicago, IL 60604 USA

[13] Univ Illinois, Dept Phys, Urbana, IL 61801 USA

[14] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA

[15] Univ Calif Santa Barbara, Kavli Inst Theoret Phys, Santa Barbara, CA 93106 USA

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.92.022001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The recently developed Symanzik-improved staggered-quark discretization allows unquenched lattice-QCD simulations with much smaller (and more realistic) quark masses than previously possible. To test this formalism, we compare experiment with a variety of nonperturbative calculations in QCD drawn from a restricted set of "gold-plated" quantities. We find agreement to within statistical and systematic errors of 3% or less. We discuss the implications for phenomenology and, in particular, for heavy-quark physics.

引用

页数：5

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