The Pseudoscalar Decay Constant

S. V. Wright

The Pseudoscalar Decay Constant

High Energy Physics - Lattice 2007-05-23 v1 Nuclear Theory

Authors: S. V. Wright

Abstract

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.

Keywords

chiral perturbation theory chiral symmetry in hadron physics kaon decays

Cite

@article{arxiv.hep-lat/0411019,
  title  = {The Pseudoscalar Decay Constant},
  author = {S. V. Wright},
  journal= {arXiv preprint arXiv:hep-lat/0411019},
  year   = {2007}
}

Comments

6 pages, 5 figures. To appear in the proceedings of Workshop on QCD Down Under, Barossa Valley and Adelaide, Australia, 10-19 Mar 2004

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