Ab Initio Determination of Light Hadron Masses

被引：419

作者：

Duerr, S. ^{[1
,2
]}

Fodor, Z. ^{[1
,2
,3
,4
]}

Frison, J. ^{[5
]}

Hoelbling, C. ^{[3
,4
,5
]}

Hoffmann, R. ^{[3
]}

Katz, S. D. ^{[3
,4
]}

Krieg, S. ^{[3
]}

Kurth, T. ^{[3
]}

Lellouch, L. ^{[5
]}

Lippert, T. ^{[2
,3
]}

Szabo, K. K. ^{[3
]}

Vulvert, G. ^{[5
]}

机构：

[1] Deutsch Elekt Synchrotron Zeuthen, John von Neumann Inst Comp, D-15738 Zeuthen, Germany

[2] Forschungszentrum Julich, Julich Supercomp Ctr, D-52425 Julich, Germany

[3] Berg Univ Wuppertal, D-42119 Wuppertal, Germany

[4] Eotvos Lorand Univ, Inst Theoret Phys, H-1117 Budapest, Hungary

[5] Univ Aix Marseille 1, Ctr Phys Theor, UMR 6207, CNRS, F-13288 Marseille 9, France

来源：

SCIENCE | 2008年 / 322卷 / 5905期

关键词：

D O I：

10.1126/science.1163233

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

More than 99% of the mass of the visible universe is made up of protons and neutrons. Both particles are much heavier than their quark and gluon constituents, and the Standard Model of particle physics should explain this difference. We present a full ab initio calculation of the masses of protons, neutrons, and other light hadrons, using lattice quantum chromodynamics. Pion masses down to 190 mega- electron volts are used to extrapolate to the physical point, with lattice sizes of approximately four times the inverse pion mass. Three lattice spacings are used for a continuum extrapolation. Our results completely agree with experimental observations and represent a quantitative confirmation of this aspect of the Standard Model with fully controlled uncertainties.

引用

页码：1224 / 1227

页数：4

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