Electromagnetic form factors of hadrons

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A vector meson dominance model of the electromagnetic form factors of hadrons is developed which is based on the use of unstable particle propagators. Least-square fits are made to the proton, neutron, pion and kaon form factor data in both the space and time-like regions. A good fit to the low-energy nucleon form factor data is obtained using only rho, $omega$, and phi dominance, and leads to a determination of the vector meson resonance parameters in good agreement with experiment. The nucleon-vector meson coupling constants obey simple sum rules indicating that there exists no hard core contribution to the form ... continued below

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Pages: 225

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Zidell, V.S. January 1, 1976.

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  • Ames Laboratory
    Publisher Info: Ames Lab., Iowa (USA)
    Place of Publication: [Ames,] Iowa

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A vector meson dominance model of the electromagnetic form factors of hadrons is developed which is based on the use of unstable particle propagators. Least-square fits are made to the proton, neutron, pion and kaon form factor data in both the space and time-like regions. A good fit to the low-energy nucleon form factor data is obtained using only rho, $omega$, and phi dominance, and leads to a determination of the vector meson resonance parameters in good agreement with experiment. The nucleon-vector meson coupling constants obey simple sum rules indicating that there exists no hard core contribution to the form factors within theoretical uncertainties. The prediction for the electromagnetic radii of the proton is in reasonable agreement with recent experiments. The pion and kaon charge form factors as deduced from the nucleon form factors assuming vector meson universality are compared to the data. The pion form factor agrees with the data in both the space and time-like regions. The pion charge radius is in agreement with the recent Dubna result, but the isovector P-wave pion-pion phase shift calculated from the theory disagrees with experiment. A possible contribution to the form factors from a heavy rho meson is also evaluated. (auth)

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Pages: 225

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  • Other Information: Thesis. Orig. Receipt Date: 30-JUN-76

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  • Report No.: IS-T--706
  • Grant Number: W-7405-ENG-82
  • DOI: 10.2172/4083035 | External Link
  • Office of Scientific & Technical Information Report Number: 4083035
  • Archival Resource Key: ark:/67531/metadc863173

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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.

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  • January 1, 1976

Added to The UNT Digital Library

  • Sept. 16, 2016, 12:32 a.m.

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  • Oct. 26, 2017, 7:13 p.m.

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Zidell, V.S. Electromagnetic form factors of hadrons, thesis or dissertation, January 1, 1976; [Ames,] Iowa. (digital.library.unt.edu/ark:/67531/metadc863173/: accessed October 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.