Extrapolations of lattice meson form factors

被引：31

作者：

Bunton, T. B. ^{[1
]}

Jiang, F. -J. ^{[1
]}

Tiburzi, B. C. ^{[1
]}

机构：

[1] Duke Univ, Dept Phys, Durham, NC 27708 USA

来源：

PHYSICAL REVIEW D | 2006年 / 74卷 / 03期

关键词：

D O I：

10.1103/PhysRevD.74.034514

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We use chiral perturbation theory to study the extrapolations necessary to make physical predictions from lattice QCD data for the electromagnetic form factors of pseudoscalar mesons. We focus on the quark mass, momentum, lattice spacing, and volume dependence and apply our results to simulations employing mixed actions of Ginsparg-Wilson valence quarks and staggered sea quarks. To determine charge radii at quark masses on the lattices currently used, we find that all extrapolations except the one to infinite volume make significant contributions to the systematic error.

引用

页数：8

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