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A determination of the strange quark mass for unquenched clover fermions using the AWI

M. Göckeler·R. Horsley·A. C. Irving·D. Pleiter·P. E. L. Rakow·G. Schierholz·H. Stüben·J. M. Zanotti
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Abstract

Using the O(a) Symanzik improved action an estimate is given for the strange quark mass for unquenched (nf=2) QCD. The determination is via the axial Ward identity (AWI) and includes a non-perturbative evaluation of the renormalisation constant. Numerical results have been obtained at several lattice spacings, enabling the continuum limit to be taken. Results indicate a value for the strange quark mass (in the MSbar-scheme at a scale of 2GeV) in the range 100 - 130MeV.

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M. Göckeler, R. Horsley, A. C. Irving, D. Pleiter, P. E. L. Rakow, G. Schierholz, H. Stüben, J. M. Zanotti. 2005-09-27. A determination of the strange quark mass for unquenched clover fermions using the AWI. https://arxiv.org/abs/hep-lat/0509159

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