Nucleon distribution amplitudes from lattice QCD

被引：35

作者：

Goeckeler, Meinulf ^{[1
]}

Horsley, Roger ^{[2
]}

Kaltenbrunner, Thomas ^{[1
]}

Nakamura, Yoshifumi ^{[3
,4
]}

Pleiter, Dirk ^{[3
,4
]}

Rakow, Paul E. L. ^{[5
]}

Schaefer, Andreas ^{[1
,6
]}

Schierholz, Gerrit ^{[3
,4
]}

Stueben, Hinnerk ^{[7
]}

Warkentin, Nikolaus ^{[1
]}

Zanotti, James M. ^{[2
]}

机构：

[1] Univ Regensburg, Inst Theoret Phys, D-93040 Regensburg, Germany

[2] Univ Edinburgh, Sch Phys, Edinburgh EH9 3JZ, Midlothian, Scotland

[3] DESY, D-15738 Zeuthen, Germany

[4] John Neumann Inst Comp, D-15738 Zeuthen, Germany

[5] Univ Liverpool, Div Theoret Phys, Dept Math Sci, Liverpool L69 3BX, Merseyside, England

[6] Kyoto Univ, Yukawa Inst Theoret Phys, Kyoto 606, Japan

[7] Konrad Zuse Zentrum Informat Tech Berlin, D-14195 Berlin, Germany

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 11期

基金：

英国科学技术设施理事会;

关键词：

D O I：

10.1103/PhysRevLett.101.112002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We calculate low moments of the leading-twist and next-to-leading-twist nucleon distribution amplitudes on the lattice using two flavors of clover fermions. The results are presented in the (MS) over bar scheme at a scale of 2 GeV and can be immediately applied in phenomenological studies. We find that the deviation of the leading-twist nucleon distribution amplitude from its asymptotic form is less pronounced than sometimes claimed in the literature.

引用

页数：4

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