Tuning for three flavors of anisotropic clover fermions with stout-link smearing
Open Access
- 2 September 2008
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 78 (5) , 054501
- https://doi.org/10.1103/physrevd.78.054501
Abstract
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 and renormalized anisotropy , 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.
Keywords
All Related Versions
This publication has 44 references indexed in Scilit:
- Excited hadrons on the lattice: BaryonsPhysical Review D, 2006
- Spectral analysis of excited nucleons in lattice QCD with maximum entropy methodPhysics Letters B, 2005
- Excited baryon spectroscopy from lattice QCD: Finite size effect and hyperfine mass splittingPhysical Review D, 2005
- Baryon Spectroscopy in Lattice QCDPublished by Springer Nature ,2005
- Roper resonance and S11(1535) from lattice QCDPhysics Letters B, 2005
- Extracting excited states from lattice QCD: the Roper resonancePhysics Letters B, 2004
- Charmonium spectrum from quenched anisotropic lattice QCDPhysical Review D, 2002
- Lattice study of the nucleon excited states with domain wall fermionsPhysical Review D, 2002
- Heavy quarks on anisotropic lattices: The charmonium spectrumPhysical Review D, 2001
- Glueball spectrum from an anisotropic lattice studyPhysical Review D, 1999