Sea Quark Effects on Quarkonia

Abstract

We study the effects of two dynamical sea quarks on the spectrum of heavy quarkonia. Within the non-relativistic approach to Lattice QCD we found sizeable changes to the hyperfine splitting, but we could not observe any changes for the fine structure. We also investigated the scaling behaviour of our results for several different lattice spacings.

LaTex, 21 pages, 16 figures, some minor corrections

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Cited by in corpus (25)

• The QCD spectrum with three quark flavors
• Quarkonia and their transitions
• Light Hadron Spectroscopy with Two Flavors of Dynamical Quarks on the Lattice
• The Upsilon spectrum and m_b from full lattice QCD
• Charmed and Bottom Baryons from Lattice NRQCD
• Charmed baryons in lattice QCD
• Charmonium Spectrum from Quenched Anisotropic Lattice QCD
• Observation of h_c(^1P_1) State of Charmonium
• $M({\eta }_b)$ and ${\alpha }_s$ from Nonrelativistic Renormalization Group
• Bottomonium spectrum at order v^6 from domain-wall lattice QCD: precise results for hyperfine splittings
• Lattice QCD study of the radiative decays $J/\psi \to {\eta }_c\gamma$ and $h_c\to {\eta }_c\gamma$
• Precision Measurement of the Mass of the h_c(1P1) State of Charmonium
• Production of singlet P-wave $c\bar{c}$ and $b\bar{b}$ states
• Observation of the ^1P_1 State of Charmonium
• B meson decay constant from two-flavor lattice QCD with non-relativistic heavy quarks
• Production of the ${\eta }_b(nS)$ states
• Hadron Spectroscopy: Theory and Experiment
• Relativistic Bottomonium Spectrum from Anisotropic Lattices
• Production of the D-wave $b\bar{b}$ states
• Heavy Quark Spectroscopy -- Theory Overview
• Hybrid Quarkonia with Dynamical Sea Quarks
• Heavy Quarks on the Lattice
• Unquenched Charmonium with NRQCD
• Production of the h_c and h_b and Implications for Quarkonium Spectroscopy
• CLEO Spectroscopy Results