TY  - JOUR
AU  - Durr, Stephan
TI  - Taste-split staggered actions: eigenvalues, chiralities and Symanzik improvement
JO  - Physical review / D
VL  - 87
IS  - 11
SN  - 1550-7998
CY  - [S.l.]
PB  - Soc.
M1  - FZJ-2013-06518
SP  - 114501
PY  - 2013
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000319911500008
DO  - DOI:10.1103/PhysRevD.87.114501
UR  - https://juser.fz-juelich.de/record/141333
ER  -