Two flavors of dynamical quarks on anisotropic lattices

Abstract

We report on our study of two-flavor full QCD on anisotropic lattices using $O(a)$-improved Wilson quarks coupled with an RG-improved glue. The bare gauge and quark anisotropies corresponding to the renormalized anisotropy $\xi =a_s/a_t=2$ are determined as functions of $\beta$ and $\kappa$, which covers the region of spatial lattice spacings $a_s\approx 0.28$--0.16 fm and $m_{PS}/m_V\approx 0.6$--0.9. The calibrations of the bare anisotropies are performed with the Wilson loop and the meson dispersion relation at 4 lattice cutoffs and 5--6 quark masses. Using the calibration results we calculate the meson mass spectrum and the Sommer scale $r_0$. We confirm that the values of $r_0$ calculated for the calibration using pseudo scalar and vector meson energy momentum dispersion relation coincide in the continuum limit within errors. This work serves to lay ground toward studies of heavy quark systems and thermodynamics of QCD including the extraction of the equation of state in the continuum limit using Wilson-type quark actions.

arXiv comment16 pages, 23 figures, Version accepted for publication in Physical Review D

References in corpus (28)

• The glueball spectrum from an anisotropic lattice study
• A New Way to Set the Energy Scale in Lattice Gauge Theories and its Application to the Static Force and ${\alpha }_s$ in SU(2) Yang--Mills Theory
• Observing Long Colour Flux Tubes in SU(2) Lattice Gauge Theory
• Light Hadron Spectroscopy with Two Flavors of Dynamical Quarks on the Lattice
• Phase structure and critical temperature of two-flavor QCD with a renormalization group improved gauge action and clover improved Wilson quark action
• The Anisotropic Wilson Gauge Action
• Charmonium Spectrum from Quenched Anisotropic Lattice QCD
• Equation of state in finite-temperature QCD with two flavors of improved Wilson quarks
• Relativistic Heavy Quarks on the Lattice
• Heavy Quarks on Anisotropic Lattices: The Charmonium Spectrum
• Scaling of Chiral Order Parameter in Two-Flavor QCD
• Study of Charmonia near the deconfining transition on an anisotropic lattice with O(a) improved quark action
• Hybrid Quarkonia on Asymmetric Lattices
• Comparative Study of full QCD Hadron Spectrum and Static Quark Potential with Improved Actions
• Meson Correlators in Finite Temperature Lattice QCD
• Dynamical Quark Effects on Light Quark Masses
• Glueball Properties at Finite Temperature in SU(3) Anisotropic Lattice QCD
• Calculating the I=2 Pion Scattering Length Using Tadpole Improved Clover Wilson Action on Coarse Anisotropic Lattices
• B meson decay constant from two-flavor lattice QCD with non-relativistic heavy quarks
• Thermodynamics of SU(3) gauge theory on anisotropic lattices
• Numerical study of O(a) improved Wilson quark action on anisotropic lattice
• O(a)-improved quark action on anisotropic lattices and perturbative renormalization of heavy-light currents
• Topological Susceptibility in Lattice QCD with Two Flavors of Dynamical Quarks
• Flavor Singlet Meson Mass in the Continuum Limit in Two-Flavor Lattice QCD
• Heavy quark action on the anisotropic lattice
• Improved Gauge Actions on Anisotropic Lattices I
• Relativistic heavy quarks on the lattice
• Renormalization group improved action on anisotropic lattices

Cited by in corpus (13)

• Tuning for Three-flavors of Anisotropic Clover Fermions with Stout-link Smearing
• Light Hadron Masses from Lattice QCD
• Excited State Nucleon Spectrum with Two Flavors of Dynamical Fermions
• Glueball spectrum from $N_f=2$ lattice QCD study on anisotropic lattices
• Symmetry restoration at high-temperature in two-color and two-flavor lattice gauge theories
• Lattice study on kaon pion scattering length in the $I=3/2$ channel
• A Numerical Study of Improved Quark Actions on Anisotropic Lattices
• Visualisations of coherent centre domains in local Polyakov loops
• Isotropic and Anisotropic Lattice Spacing Corrections for I=2 pi-pi Scattering from Effective Field Theory
• Effective Field Theory for the Anisotropic Wilson Lattice Action
• Quenched Charmed Meson Spectra using Tadpole Improved Quark Action on Anisotropic Lattices
• Topics in Lattice QCD and Effective Field Theory
• An anisotropic preconditioning for the Wilson fermion matrix on the lattice