The Pseudoscalar Decay Constant

We discuss insights that may be drawn from our recent 2 flavour O(a)--improved Wilson quark simulations. We discuss the evidence of the onset of chiral logarithms in the pion decay constant. An overview is given of current extrapolation methods and a modification of chiral perturbation theory is pre...

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Bibliographic Details
Main Author Wright, S. V
Format Journal Article
LanguageEnglish
Published 15.11.2004
Subjects
Physics - High Energy Physics - Lattice
Physics - Nuclear Theory
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Summary:We discuss insights that may be drawn from our recent 2 flavour O(a)--improved Wilson quark simulations. We discuss the evidence of the onset of chiral logarithms in the pion decay constant. An overview is given of current extrapolation methods and a modification of chiral perturbation theory is presented as an approach for sensibly extrapolating to the physical quark masses.
Bibliography:LTH 626
DOI:10.48550/arxiv.hep-lat/0411019