arXiv:0711.0167·v2·High Energy Physics — Lattice
Finite-volume Correction to the Pion Decay Constant in the Epsilon-Regime
Poul H. Damgaard🇩🇰 · Thomas DeGrand🇺🇸 · Hidenori Fukaya🇩🇰
Abstract
In the chiral limit of QCD, the pion decay constant F can be extracted from lattice gauge theory by means of a coupling to isospin chemical potential. Here we compute the leading correction due to finite volume in the epsilon-expansion of chiral perturbation theory. A comparison is made to recent Monte Carlo data.
Comments: 7 pages. Corrects an error in the published version