Chiral and continuum extrapolation of partially-quenched hadron masses
Date
2005
Authors
Allton, C.
Armour, W.
Leinweber, D.
Thomas, A.
Young, R.
Editors
Irving, A.
McNeile, C.
Michael, C.
McNeile, C.
Michael, C.
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Conference paper
Citation
Proceedings of Science: XXIIIrd International Symposium on Lattice Field Theory: pp.049/1-049/6
Statement of Responsibility
C. R. Allton, W. Armour, D. B. Leinweber, A. W. Thomas, R. D. Young
Conference Name
International Symposium on Lattice Field Theory (23rd : 2005 : Dublin, Ireland)
Abstract
Using the finite-range regularisation (FRR) of chiral effective field theory, the chiral extrapolation formula for the vector meson mass is derived for the case of partially-quenched QCD. We re-analyse the dynamical fermion QCD data for the vector meson mass from the CP-PACS collaboration. A global fit, including finite lattice spacing effects, of all 16 of their ensembles is performed. We study the FRR method together with a naive polynomial approach and find excellent agreement (∼1%) with the experimental value of M<inf>r</inf> from the former approach. These results are extended to the case of the nucleon mass.