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Chiral and continuum extrapolation of partially-quenched lattice results / Thomas Anthony, Derek Bruce Leinweber, Ross Daniel Young, W. Armour, Chris Allton

Physics Letters B, Volume: 628, Issue: 1-2, Pages: 125 - 130

Swansea University Author: Chris Allton

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Abstract

The vector meson mass is extracted from a large sample of partially quenched, two-flavor lattice QCD simulations. For the first time, discretisation, finite-volume and partial quenching artefacts are treated in a unified framework which is consistent with the low-energy behaviour of QCD. This analys...

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Published in: Physics Letters B
ISSN: 03702693
Published: 2005
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa28478
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Abstract: The vector meson mass is extracted from a large sample of partially quenched, two-flavor lattice QCD simulations. For the first time, discretisation, finite-volume and partial quenching artefacts are treated in a unified framework which is consistent with the low-energy behaviour of QCD. This analysis incorporates the leading infrared behaviour dictated by chiral effective field theory. As the two-pion decay channel cannot be described by a low-energy expansion alone, a highly-constrained model for the decay channel of the rho-meson is introduced. The latter is essential for extrapolating lattice results from the quark-mass regime where the rho is observed to be a physical bound state.
College: College of Science
Issue: 1-2
Start Page: 125
End Page: 130