Pion decay constant in quenched QCD with Kogut-Susskind quarks
Abstract
We present a non-perturbative calculation for the pion decay constant with quenched Kogut-Susskind quarks. Numerical simulations are carried out at β = 6.0 and 6.2 with various operators extending over all flavors. The renormalization correction is applied for each flavor by computing non-perturbative renormalization constants, and it is compared with a perturbative calculation. We also study the behavior of fπ in the continuum limits for both non-perturbative and perturbative calculations. The results in the continuum limit is also discussed.
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