Estimating the Unquenched Strange Quark Mass from the Lattice Axial Ward Identity

Göckeler, M, Horsley, R, Irving, AC, Pleiter, D, Rakow, PEL ORCID: 0000-0003-4486-2158, Schierholz, G, Stüben, H and Zanotti, JM
(2006) Estimating the Unquenched Strange Quark Mass from the Lattice Axial Ward Identity. Phys.Rev.D, 73 (5). 054508-.

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We present a determination of the strange quark mass for two flavours (nf=2) of light dynamical quarks using the axial Ward identity. The calculations are performed on the lattice using O(a) improved Wilson fermions and include a fully non-perturbative determination of the renormalisation constant. In the continuum limit we find in the MSbar scheme at 2GeV, ms = 111(6)(4)(6)MeV using the force scale r0 = 0.467fm, where the first error is statistical, the second and third are systematic due to the fit and scale uncertainties respectively. Results are also presented for the light quark mass and the chiral condensate. The corresponding results are also given for r0=0.5fm.

Item Type: Article
Additional Information: 39 pages, 13 figures, latex
Uncontrolled Keywords: hep-lat, hep-lat, hep-ph
Subjects: ?? QC ??
Divisions: Faculty of Science and Engineering > School of Physical Sciences > Mathematical Sciences
Depositing User: Symplectic Admin
Date Deposited: 27 Oct 2008 11:11
Last Modified: 17 Dec 2022 01:18
DOI: 10.1103/physrevd.73.054508
Publisher's Statement : ©2006 The American Physical Society
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