Nucleon axial charge in full lattice QCD

被引：134

作者：

Edwards, RG ^{[1
]}

Fleming, GT

Hägler, P

Negele, JW

Orginos, K

Pochinsky, AV

Renner, DB

Richards, DG

Schroers, W

机构：

[1] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA

[2] Yale Univ, Sloane Phys Lab, New Haven, CT 06520 USA

[3] Free Univ Amsterdam, Dept Phys & Astron, NL-1081 HV Amsterdam, Netherlands

[4] Tech Univ Munich, Inst Theoret Phys, D-85747 Garching, Germany

[5] MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA

[6] Coll William & Mary, Dept Phys, Williamsburg, VA 23187 USA

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

[8] NIC DESY, John von Neumann Inst Comp, D-15738 Zeuthen, Germany

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.96.052001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The nucleon axial charge is calculated as a function of the pion mass in full QCD. Using domain wall valence quarks and improved staggered sea quarks, we present the first calculation with pion masses as light as 354 MeV and volumes as large as (3.5 fm)(3). We show that finite volume effects are small for our volumes and that a constrained fit based on finite volume chiral perturbation theory agrees with experiment within 7% statistical errors.

引用

页数：4

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