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Scaling Study of the Leptonic Decay Constants of Heavy-Light Mesons: A Consumers Report on Improvement Factors

S. Güsken·C. Alexandrou·F. Jegerlehner·K. Schilling·G. Siegert·R. Sommer
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Abstract

A high statistics calculation, performed at $β=5.74,\;6.00$ and $6.26$, enables us to study the variation of the leptonic decay constants $f_P$ of heavy pseudoscalar mesons with the lattice spacing $a$. We observe only a weak $a$ dependence when the standard $\sqrt{2κ}$ normalization is used for the quark fields, whereas application of the Kronfeld-Mackenzie normalization induces a stronger variation with $a$. Increasing the meson mass from $1.1GeV$ to $2.3GeV$ this situation becomes even more pronounced.

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S. Güsken, C. Alexandrou, F. Jegerlehner, K. Schilling, G. Siegert, R. Sommer. 1993-12-01. Scaling Study of the Leptonic Decay Constants of Heavy-Light Mesons: A Consumers Report on Improvement Factors. https://doi.org/10.1016/0920-5632(94)90416-2

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