Journal Article

PreJuSER-3294

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Scaling study of dynamical smeared-link clover fermions

Dürr, S. ; Fodor, Z. ; Hoelbling, C. ; Hoffmann, R. ; Katz, S. D. ; Krieg, S.FZJ* ; Kurth, T. ; Lellouch, L. ; Lippert, T.FZJ* ; Szabo, K. K. ; Vulvert, G.

2009
Soc. [S.l.]

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Please use a persistent id in citations: http://hdl.handle.net/2128/11145  doi:10.1103/PhysRevD.79.014501

Abstract: We present a framework for phenomenological lattice QCD calculations which makes use of a tree-evel Symanzink improved action for gluons and stout-link Wilson fermions. We give details of our efficient HMC/RHMC algorithm and present a scaling study of the low-lying N-f = 3 baryon spectrum. We find a scaling region that extends to a <= 0.16 fm and conclude that our action and algorithm are suitable for large scale phenomenological investigations of N-f = 2 + 1 QCD. We expect this conclusion to hold for other comparable actions.

Keyword(s): J

Note: Computations were performed on the BlueGene/ P at FZ Julich and on clusters at the University of Wuppertal and at CPT Marseille. This work is supported in part by EU Grant No. I3HP, OTKA Grant Nos. T34980, T37615, M37071, T032501, AT049652, DFG Grant No. FO 502/1-2, EU RTN contract MRTN-CT-2006-035482 (FLAVIAnet) and by the CNRS's GDR Grant No. 2921 (``Physique subatomique et calculs sur reseau'').

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Contributing Institute(s):

1. Jülich Supercomputing Centre (JSC)

Research Program(s):

1. Scientific Computing (P41)

Appears in the scientific report 2009

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