Nucleon elastic form factors and local duality

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Utilizing quark-hadron duality, a relation can be derived between the ration of longitudinal to transverse deep inelastic electron-proton scattering cross sections and the ratio of the electric to magnetic proton elastic factors. This relation allows the extraction of the elastic form factor ratio from purely inelastic data, and the extracted ratio agrees surprisingly well with the existing world data. This agreement is a first experimental verification of duality in the longitudinal channel, and suggests that effects of higher-twist operators are suppressed on average in the longitudinal electron-nucleon scattering process.

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178 Kilobytes pages

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Ent, R.; Keppel, C.E. & Niculescu, I. April 1, 1999.

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Description

Utilizing quark-hadron duality, a relation can be derived between the ration of longitudinal to transverse deep inelastic electron-proton scattering cross sections and the ratio of the electric to magnetic proton elastic factors. This relation allows the extraction of the elastic form factor ratio from purely inelastic data, and the extracted ratio agrees surprisingly well with the existing world data. This agreement is a first experimental verification of duality in the longitudinal channel, and suggests that effects of higher-twist operators are suppressed on average in the longitudinal electron-nucleon scattering process.

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178 Kilobytes pages

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  • Journal Name: Physical Review Letters; Other Information: Submitted to Physical Review Letters

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  • Report No.: DOE/ER/40150-1336
  • Report No.: JLAB-PHY-99-04
  • Grant Number: AC05-84ER40150
  • Office of Scientific & Technical Information Report Number: 754026
  • Archival Resource Key: ark:/67531/metadc710159

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  • April 1, 1999

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  • Sept. 12, 2015, 6:31 a.m.

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  • Feb. 5, 2016, 8:23 p.m.

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Ent, R.; Keppel, C.E. & Niculescu, I. Nucleon elastic form factors and local duality, article, April 1, 1999; Newport News, Virginia. (digital.library.unt.edu/ark:/67531/metadc710159/: accessed October 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.