AXIAL BARYONIC CHARGE AND THE SPIN CONTENT OF THE NUCLEON - A LATTICE INVESTIGATION

被引：17

作者：

ALTMEYER, R

GOCKELER, M

HORSLEY, R

LAERMANN, E

SCHIERHOLZ, G

机构：

[1] RHEIN WESTFAL TH AACHEN, INST THEORET PHYS, D-52056 AACHEN, GERMANY

[2] KFA, HOCHSTLEISTUNGSRECHENZENTRUM, THEORIE ELEMENTARTEILCHEN GRP, D-52425 JULICH, GERMANY

[3] UNIV BIELEFELD, FAK PHYS, D-33501 BIELEFELD, GERMANY

来源：

PHYSICAL REVIEW D | 1994年 / 49卷 / 07期

关键词：

D O I：

10.1103/PhysRevD.49.R3087

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The axial baryonic charge of the nucleon, DELTASIGMA, which measures the quark fraction of the nucleon spin, is computed in lattice QCD with dynamical staggered fermions. We obtain the value DELTASIGMA=0.18+/-0.02. This suggests that the quark spin is responsible for very little of the nucleon spin.

引用

页码：R3087 / R3090

页数：4

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