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The Pseudoscalar Decay Constant

By 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

Topics: Particle Physics - Lattice
Year: 2004
OAI identifier: oai:cds.cern.ch:803605
Provided by: CERN Document Server
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