2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/199583In 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 versionHigh Energy Physics - Latticetext