Talk presented by Tomoyuki Kaneda

Parallel Session: Matrix Elements II

Thursday July 1st, 17.40 - 18.00, Auditorium

Authors: JLQCD Collaboration:

Pion decay constant in quenched lattice QCD with Kogut-Susskind quarks

Abstract: We present a completely non-perturbative calculation for the pion decay constant with quenched Kogut-Susskind quarks. Numerical simulations are carried out at $\beta = 6.0$ 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 $f_\pi$ in the continuum limits for both non-perturbative and perturbative calculations. The results in the continuum limit is also discussed.

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