Journal Article

PreJuSER-18057

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Ratio m_c/m_s with Wilson fermions

Dürr, S.FZJ* ; Koutsou, G.

2012
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/7358  doi:10.1103/PhysRevLett.108.122003

Abstract: We determine the quark mass ratio m(c)/m(s) on the lattice, using Wilson-type fermions. Configurations with N-f = 2 dynamical clover-improved fermions by the QCDSF Collaboration are used, which were made available through the ILDG. In the valence sector we use a sophisticated, mass-independently O(a)- improved Wilson-type action with small cutoff effects even in the charm mass region. After an extrapolation to the physical pion mass, to zero lattice spacing and to infinite box volume, we find m(c)/m(s) = 11.27(30)(26).

Keyword(s): J

Note: We thank the QCDSF Collaboration for allowing us to use their N<INF>f</INF> = 2 configurations [8-11] and the ILDG for making them available [12]. We thank Thomas Lippert for support, and Zoltan Fodor and Stefan Sint for discussion. We acknowledge partial support in SFB/TR-55. CPU resources on JUROPA were provided by Forschungszentrum Julich GmbH.

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Contributing Institute(s):

1. Jülich Supercomputing Centre (JSC)

Research Program(s):

1. Scientific Computing (FUEK411) (FUEK411)
2. 411 - Computational Science and Mathematical Methods (POF2-411) (POF2-411)

Appears in the scientific report 2012

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Database coverage:
; ; ; Current Contents - Social and Behavioral Sciences ; JCR ; NCBI Molecular Biology Database ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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