Meson and Baryon Spectroscopy on a Lattice

Abstract

I review the results of hadron spectroscopy calculations from lattice QCD for an intended audience of low energy hadronic physicists. I briefly introduce the ideas of numerical lattice QCD. The various systematic errors, such as the lattice spacing and volume dependence, in lattice QCD calculations are discussed. In addition to the discussion of the properties of ground state hadrons, I also review the small amount of work done on the spectroscopy of excited hadrons and the effect of electromagnetic fields on hadron masses. I also discuss the attempts to understand the physical mechanisms behind hadron mass splittings.

111 pages, 28 figures, prepared for World Scientific Publishing Company (International Review of Nuclear Physics, Vol. 9, Hadronic Physics from Lattice QCD, edited by A. M. Green)

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• Contribution of disconnected diagrams to the hyperfine splitting of charmonium
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