Scaling tests of the improved Kogut-Susskind quark action

Abstract

Improved lattice actions for Kogut-Susskind quarks have been shown to improve rotational symmetry and flavor symmetry. In this work we find improved scaling behavior of the rho and nucleon masses expressed in units of a length scale obtained from the static quark potential, and better behavior of the Dirac operator in instanton backgrounds.

arXiv comment4 pages, 4 figures, Revtex

References in corpus (19)

• Variants of fattening and flavor symmetry restoration
• Precision computation of a low-energy reference scale in quenched lattice QCD
• Flavor-Symmetry Restoration and Symanzik Improvement for Staggered Quarks
• Evidence for the Role of Instantons in Hadron Structure from Lattice QCD
• Testing improved actions for dynamical Kogut-Susskind quarks
• An Accelerated Conjugate Gradient Algorithm to Compute Low-Lying Eigenvalues --- a Study for the Dirac Operator in SU(2) Lattice QCD
• Instantons, the QCD Vacuum, and Hadronic Physics
• Improved staggered quark actions with reduced flavour symmetry violations for lattice QCD
• Perturbative Improvement for Lattice QCD: An Update
• Correlation Functions of Hadron Currents in the QCD Vacuum Calculated in Lattice QCD
• Quenched hadron spectroscopy with improved staggered quark action
• Topology, fermionic zero modes and flavor singlet correlators in finite temperature QCD
• Tests of Improved Kogut-Susskind Fermion Actions
• Staggered Fermions and Gauge Field Topology
• Improving the staggered quark action to reduce flavour symmetry violations
• Continuum limit of lattice QCD with staggered quarks in the quenched approximation - a critical role for the chiral extrapolation
• Comparing Wilson and Clover Quenched $SU(3)$ Spectroscopy with an Improved Gauge Action
• Structure of the QCD Vacuum As Seen By Lattice Simulations
• Light quark spectrum with improved gauge and fermion actions

Cited by in corpus (61)

• Full nonperturbative QCD simulations with 2+1 flavors of improved staggered quarks
• Nucleon Electromagnetic Form Factors
• The QCD spectrum with three quark flavors
• High-Precision Lattice QCD Confronts Experiment
• Light pseudoscalar decay constants, quark masses, and low energy constants from three-flavor lattice QCD
• QCD Thermodynamics with Three Flavors of Improved Staggered Quarks
• Lattice QCD calculation of form factors describing the rare decays $B\to K^{\ast }{\ell }^{+}{\ell }^{-}$ and $B_s\to \varphi {\ell }^{+}{\ell }^{-}$
• Theta dependence of SU(N) gauge theories in the presence of a topological term
• Pion and Kaon masses in Staggered Chiral Perturbation Theory
• The Upsilon spectrum and m_b from full lattice QCD
• Neutral B Meson Mixing in Unquenched Lattice QCD
• The B Meson Decay Constant from Unquenched Lattice QCD
• $B_{(s)}^0$-mixing matrix elements from lattice QCD for the Standard Model and beyond
• B Meson Semileptonic Form Factors from Unquenched Lattice QCD
• $|V_{ub}|$ from $B\to \pi \ell \nu$ decays and (2+1)-flavor lattice QCD
• Charmed meson decay constants in three-flavor lattice QCD
• Relevance of the axial anomaly at the finite-temperature chiral transition in QCD
• $B\to K{l}^{+}{l}^{-}$ decay form factors from three-flavor lattice QCD
• Chiral Analysis of Quenched Baryon Masses
• Pseudoscalar Decay Constants in Staggered Chiral Perturbation Theory
• The static quark potential in three flavor QCD
• First determination of the strange and light quark masses from full lattice QCD
• QCD Thermodynamics from the Lattice
• $D\to K,l\nu$ Semileptonic Decay Scalar Form Factor and $|V_{cs}|$ from Lattice QCD
• Chiral Logs in the Presence of Staggered Flavor Symmetry Breaking
• The B -> D* l nu form factor at zero recoil from three-flavor lattice QCD: A model independent determination of |V_cb|
• The Index Theorem and Universality Properties of the Low-lying Eigenvalues of Improved Staggered Quarks
• The B_s and D_s decay constants in 3 flavor lattice QCD
• Volume and Quark Mass Dependence of the Chiral Phase Transition
• Staggered Chiral Perturbation Theory for Heavy-Light Mesons
• On the strength of the $U_A(1)$ anomaly at the chiral phase transition in $N_f=2$ QCD
• Lattice QCD study of the s-wave $\pi \pi$ scattering lengths in the I=0 and 2 channels
• The Low-Lying Dirac Spectrum of Staggered Quarks
• $B_s\to K\ell \nu$ decay from lattice QCD
• Tuning Fermilab Heavy Quarks in 2+1 Flavor Lattice QCD with Application to Hyperfine Splittings
• $B_s^0-\overline{B_s^0}$ Mixing Parameters from Unquenched Lattice QCD
• On the fourth root prescription for dynamical staggered fermions
• Unquenched determination of the kaon parameter B_K from improved staggered fermions
• Scaling of FLIC Fermions
• One-Loop Matching of the Heavy-Light A_0 and V_0 Currents with NRQCD Heavy and Improved Naive Light Quarks
• Short-distance matrix elements for $D^0$-meson mixing for $N_f=2+1$ lattice QCD
• Scaling functions for the O(4)-model in d=3 dimensions
• Neutral $B$ mixing from 2+1 flavor lattice-QCD: the Standard Model and beyond
• $I=0$ $\pi \pi$ $s$-wave scattering length from lattice QCD
• Landau-Ginzburg-Wilson approach to critical phenomena in the presence of gauge symmetries
• High temperature QCD with three flavors of improved staggered quarks
• A Possible Aoki Phase for Staggered Fermions
• Pion and kaon physics with improved staggered quarks
• The QCD phase diagram at zero and small baryon density
• Results on improved KS dynamical configurations: spectrum, decay constants, etc
• Chiral extrapolation of lattice data for B-meson decay constant
• The Quenched Continuum Limit
• Heavy-light decay constants with three dynamical flavors
• Light hadron properties with improved staggered quarks
• Flavor symmetry breaking and scaling for improved staggered actions in quenched QCD
• Electromagnetic Corrections in Staggered Chiral Perturbation Theory
• Thermodynamics with 3 and 2+1 Flavors of Improved Staggered Quarks
• Index Theorem and Random Matrix Theory for Improved Staggered Quarks
• Scaling test of the P4-improved staggered fermion action
• Neutral B mixing from 2+1 flavor lattice QCD
• Lattice results with three quark flavours