Light hadron spectroscopy with two flavors of O(a) improved dynamical quarks

Abstract

We report on our study of light hadron spectrum and quark masses in QCD with two flavors of dynamical quarks. Simulations are made with the plaquette gauge action and the non-perturbatively $O(a)$ improved Wilson quark action. We simulate 5 sea qaurk masses corresponding to $m_{PS}/m_V\simeq 0.8$--0.6 at $\beta =5.2$ on $12^3\times 48$, $16^3\times 48$ and $20^3\times 48$ lattices. A comparison with previous calculations in quenched QCD indicates sea quark effects in meson and quark masses.

Lattice 2000 (Spectrum), 4 pages, 5 figures, Latex

References in corpus (6)

• 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
• O(a) improvement of the axial current in lattice QCD to one-loop order of perturbation theory
• O(a) improvement of lattice QCD with two flavors of Wilson quarks
• Further results on O(a) improved lattice QCD to one-loop order of perturbation theory
• Quenched Light Hadron Spectrum
• The Running Coupling from Lattice Gauge Theory

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• The QCD spectrum with three quark flavors
• Review of lattice results concerning low energy particle physics
• Theta dependence of SU(N) gauge theories in the presence of a topological term
• 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
• Non-perturbative renormalization of the axial current with dynamical Wilson fermions
• BK-parameter from Nf = 2 twisted mass lattice QCD
• Polynomial Hybrid Monte Carlo algorithm for lattice QCD with an odd number of flavors
• $B^0-{\bar{B}}^0$ mixing in quenched lattice QCD
• An Exact Algorithm for Any-flavor Lattice QCD with Kogut-Susskind Fermion
• Cost of dynamical quark simulations: O(a) improved Wilson fermions