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Chiral extrapolation of light-light and heavy-light decay constants in unquenched QCD

JLQCD collaboration·S. Hashimoto·S. Aoki·M. Fukugita·K-I. Ishikawa·N. Ishizuka·Y. Iwasaki·K. Kanaya·T. Kaneko·Y. Kuramashi·M. Okawa·N. Tsutsui·A. Ukawa·N. Yamada·T. Yoshie
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Abstract

We test the one-loop chiral perturbation theory formula on unquenched lattice data of pseudoscalar meson decay constants. The chiral extrapolation including the effect of the chiral logarithm is attempted and its uncertainty is discussed.

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JLQCD collaboration, S. Hashimoto, S. Aoki, M. Fukugita, K-I. Ishikawa, N. Ishizuka, Y. Iwasaki, K. Kanaya, T. Kaneko, Y. Kuramashi, M. Okawa, N. Tsutsui, A. Ukawa, N. Yamada, T. Yoshie. 2002-09-09. Chiral extrapolation of light-light and heavy-light decay constants in unquenched QCD. https://arxiv.org/abs/hep-lat/0209091

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