Unquenched QCD simulation results

Abstract

The recent progress on unquenched QCD simulations is critically reviewed. After some discussions on problems and subtleties in unquenched simulations, hadron spectra obtained from both quenched and unquenched simulations are compared among various gauge and quark actions. It is found that the Edinburgh plot does not agree in the continuum limit between Wilson and KS quark actions even in quenched QCD. Dynamical quark effects on hadron spectra, in particular, on meson masses are then presented for Wilson-type quark actions. Finally dynamical quark effects on other quantities such as the topological susceptibility and the flavor-singlet meson mass are discussed.

Lattice 2000 (Plenary), LaTex(espcrc2.sty), 16 pages, 22 eps figures

References in corpus (2)

• Quenched Light Hadron Spectrum
• Light hadron spectrum and quark masses in QCD with two flavors of dynamical quarks

Cited by in corpus (24)

• The QCD spectrum with three quark flavors
• Non-perturbative Propagators, Running Coupling and Dynamical Quark Mass of Landau gauge QCD
• Light Hadron Spectroscopy with Two Flavors of Dynamical Quarks on the Lattice
• Light hadron spectroscopy with two flavors of $O(a)$-improved dynamical quarks
• Effects of non-perturbatively improved dynamical fermions in QCD at fixed lattice spacing
• Light Hadron Spectrum and Quark Masses from Quenched Lattice QCD
• Meson and baryon spectrum for QCD with two light dynamical quarks
• Domain wall fermions with improved gauge actions
• The U_A(1) Problem on the Lattice with Ginsparg-Wilson Fermions
• Hadron Spectroscopy with Dynamical Chirally Improved Fermions
• Actions for dynamical fermion simulations: are we ready to go?
• Improved Wilson QCD simulations with light quark masses
• Zero temperature string breaking in lattice quantum chromodynamics
• Light hadron spectroscopy in two-flavor QCD with small sea quark masses
• Infrared features of KS fermion and Wilson fermion in Lattice Landau Gauge QCD
• Topological susceptibility in full QCD: lattice results versus the prediction from the QCD partition function with granularity
• Lattice QCD at the end of 2003
• Lattice 2001: Reflections
• Quark mass dependence of masses and decay constants of the pseudo-Goldstone bosons in QCD
• M_pi^2 versus m_q: comparing CP-PACS and UKQCD data to Chiral Perturbation Theory
• The Quenched Continuum Limit
• Hadron Spectrum from Dynamical Lattice QCD Simulations
• Universality in the Gross-Neveu model
• QCD topological susceptibility from the nonlocal chiral quark model