Finite-volume Correction to the Pion Decay Constant in the Epsilon-Regime
classification
✦ hep-lat
keywords
chiralconstantcorrectiondecaypiontheorycarlochemical
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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.
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