Finite-volume Correction to the Pion Decay Constant in the Epsilon-Regime
arXiv:0711.0167 · doi:10.1088/1126-6708/2007/12/060
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.
7 pages. Corrects an error in the published version