Lepton Scattering and Quark-Hadron Duality Studies at Jefferson Lab

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At high enough energies asymptotic freedom guarantees the deep inelastic scattering cross sections to be calculated as nearly free electron-quark scattering. However, confinement guarantees that the experimentally observed final states particles are hadrons. Low-energy quark hadron duality suggests that the hadronic cross sections, when averaged over an appropriate energy range, nevertheless coincide with the naive leading-twist quark-gluon calculations. Deep inelastic inclusive scattering shows that scaling at modest Q{sup 2} and v already arises from very few resonance channels. This is reflected by the striking agreement (<10%) between data in the nucleon resonance region and the deep inelastic (W{sup 2}>4GeV{sup 2}) ... continued below

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331 Kilobytes pages

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Ent, R. June 1, 2001.

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At high enough energies asymptotic freedom guarantees the deep inelastic scattering cross sections to be calculated as nearly free electron-quark scattering. However, confinement guarantees that the experimentally observed final states particles are hadrons. Low-energy quark hadron duality suggests that the hadronic cross sections, when averaged over an appropriate energy range, nevertheless coincide with the naive leading-twist quark-gluon calculations. Deep inelastic inclusive scattering shows that scaling at modest Q{sup 2} and v already arises from very few resonance channels. This is reflected by the striking agreement (<10%) between data in the nucleon resonance region and the deep inelastic (W{sup 2}>4GeV{sup 2}) region for the Q{sup 2}>0.5 (GeV/c){sup 2}, known as the Bloom-Gilman duality. Electron-hadron scattering allows for further investigation of quark-hadron duality by virtue of its ability to select resonances, by tagging with either spin or flavor.

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331 Kilobytes pages

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  • Journal Name: submitted to Lepton Scattering, Hadrons and QCD, World Scientific; Other Information: Submitted to Lepton Scattering, Hadrons and QCD, World Scientific

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  • Report No.: JLAB-PHY-01-15
  • Report No.: DOE/ER/40150-1857
  • Grant Number: AC05-84ER40150
  • Office of Scientific & Technical Information Report Number: 782693
  • Archival Resource Key: ark:/67531/metadc718518

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • June 1, 2001

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  • Sept. 29, 2015, 5:31 a.m.

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  • Feb. 5, 2016, 9:47 p.m.

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Ent, R. Lepton Scattering and Quark-Hadron Duality Studies at Jefferson Lab, article, June 1, 2001; Newport News, Virginia. (digital.library.unt.edu/ark:/67531/metadc718518/: accessed December 12, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.