Journal Article

FZJ-2013-06518

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Taste-split staggered actions: eigenvalues, chiralities and Symanzik improvement

Durr, S. (Corresponding author)FZJ*

2013
Soc. [S.l.]

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Please use a persistent id in citations: http://hdl.handle.net/2128/5715  doi:10.1103/PhysRevD.87.114501

Abstract: The eigenvalue spectra of staggered fermions with an Adams and/or Hoelbling mass term are studied. The chiralities of the eigenmodes reflect whether the chirality linked to the unflavored approximate (γ5×1) or the flavored exact (γ5×ξ5) staggered symmetry is considered, and which one of the RR, LR, RL, LL eigenmode definitions is used. In either case a sensitivity to the topological charge of the gauge background is found. We discuss how to remove the leading cutoff effects of these actions by means of a properly tuned improvement term and/or the overlap procedure. The combination of Symanzik improvement and link smearing radically improves the properties of the physical branch.

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Contributing Institute(s):

1. Jülich Supercomputing Center (JSC)

Research Program(s):

1. 411 - Computational Science and Mathematical Methods (POF2-411) (POF2-411)

Appears in the scientific report 2013

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

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