TY - JOUR
T1 - Tuning for three flavors of anisotropic clover fermions with stout-link smearing
AU - Edwards, Robert G.
AU - Joó, Bálint
AU - Lin, Huey Wen
PY - 2008/9/2
Y1 - 2008/9/2
N2 - In this work we perform the parameter tuning of three flavors of dynamical clover quarks on anisotropic lattices. The fermion action uses three-dimensional spatial stout-link smearing. The gauge anisotropy is determined in a small box with Schrödinger background using Wilson-loop ratios. The fermion anisotropy is obtained from studying the meson dispersion relation with antiperiodic boundary conditions in the time direction. The spatial and temporal clover coefficients are fixed to the tree-level tadpole-improved values, and we demonstrate that they satisfy the nonperturbative conditions as determined by the Schrödinger-functional method. For the desired lattice spacing as≈0.12fm and renormalized anisotropy ξ=3.5, we find the gauge and fermionic anisotropies can be fixed to quark mass independent values up through the strange quark mass. This work lays the foundation needed for further studies of the excited-state hadron spectrum.
AB - In this work we perform the parameter tuning of three flavors of dynamical clover quarks on anisotropic lattices. The fermion action uses three-dimensional spatial stout-link smearing. The gauge anisotropy is determined in a small box with Schrödinger background using Wilson-loop ratios. The fermion anisotropy is obtained from studying the meson dispersion relation with antiperiodic boundary conditions in the time direction. The spatial and temporal clover coefficients are fixed to the tree-level tadpole-improved values, and we demonstrate that they satisfy the nonperturbative conditions as determined by the Schrödinger-functional method. For the desired lattice spacing as≈0.12fm and renormalized anisotropy ξ=3.5, we find the gauge and fermionic anisotropies can be fixed to quark mass independent values up through the strange quark mass. This work lays the foundation needed for further studies of the excited-state hadron spectrum.
UR - http://www.scopus.com/inward/record.url?scp=51649103764&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.78.054501
DO - 10.1103/PhysRevD.78.054501
M3 - Article
AN - SCOPUS:51649103764
SN - 1550-7998
VL - 78
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 5
M1 - 054501
ER -