An asymptotic formula for the pion decay constant in a large volume

被引：42

作者：

Colangelo, G ^{[1
]}

Haefeli, C ^{[1
]}

机构：

[1] Univ Bern, Inst Theoret Phys, CH-3012 Bern, Switzerland

来源：

PHYSICS LETTERS B | 2004年 / 590卷 / 3-4期

关键词：

D O I：

10.1016/j.physletb.2004.03.080

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We derive an asymptotic formula a la Luscher for the finite-volume correction to the pion decay constant: this is expressed as an integral over the <3pi\A(mu)\0> amplitude after proper subtraction of the pion pole contribution. We analyze the formula numerically at leading and next-to-leading order in the chiral expansion. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：258 / 264

页数：7

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