Quark Models of Baryon Masses and Decays

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The application of quark models to the spectra and strong and electromagnetic couplings of baryons is reviewed. This review focuses on calculations which attempt a global description of the masses and decay properties of baryons, although recent developments in applying large N-c QCD and lattice QCD to the baryon spectrum are described. After outlining the conventional one-gluon-exchange picture, models which consider extensions to this approach are contrasted with dynamical quark models based on Goldstone-boson exchange and an algebraic collective-excitation approach. The spectra and electromagnetic and strong couplings that result from these models are compared with the quantities extracted from the ... continued below

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851 Kilobytes pages

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Capstick, Simon & Roberts, W. August 2000.

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The application of quark models to the spectra and strong and electromagnetic couplings of baryons is reviewed. This review focuses on calculations which attempt a global description of the masses and decay properties of baryons, although recent developments in applying large N-c QCD and lattice QCD to the baryon spectrum are described. After outlining the conventional one-gluon-exchange picture, models which consider extensions to this approach are contrasted with dynamical quark models based on Goldstone-boson exchange and an algebraic collective-excitation approach. The spectra and electromagnetic and strong couplings that result from these models are compared with the quantities extracted from the data and each other, and the impact of various model assumptions on these properties is emphasized. Prospects for the resolution of the important issues raised by these comparisons are discussed.

Physical Description

851 Kilobytes pages

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  • Journal Name: Progress in Particle and Nuclear Physics; Other Information: Submitted to Progress in Particle and Nuclear Physics

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  • Report No.: JLAB-THY-00-28
  • Report No.: DOE/ER/40150-1741
  • Report No.: nucl-th/0008028
  • Grant Number: AC05-84ER40150
  • Office of Scientific & Technical Information Report Number: 760438
  • Archival Resource Key: ark:/67531/metadc719984

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  • August 2000

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  • Sept. 29, 2015, 5:31 a.m.

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  • Feb. 5, 2016, 8:28 p.m.

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Capstick, Simon & Roberts, W. Quark Models of Baryon Masses and Decays, article, August 2000; Newport News, Virginia. (digital.library.unt.edu/ark:/67531/metadc719984/: accessed September 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.