Status of effective field theory of NN scattering

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There exist many nucleon-nucleon potentials which reproduce phase shifts and nuclear properties with remarkable accuracy. Three fundamental features are shared by these potential models: (1) pions are important at long distances, (2) there is a source of intermediate-range attraction, and (3) there is a source of short-distance repulsion. However, in general, distinct physical mechanisms in these models account for the same feature of the nuclear force. Agreement with experiment is maintained in spite of these differences because of the large number of fit parameters. Systematic approaches to the scattering of strongly interacting particles, such as chiral perturbation theory, are based ... continued below

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9 p.

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Beane, S.R. June 1, 1998.

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There exist many nucleon-nucleon potentials which reproduce phase shifts and nuclear properties with remarkable accuracy. Three fundamental features are shared by these potential models: (1) pions are important at long distances, (2) there is a source of intermediate-range attraction, and (3) there is a source of short-distance repulsion. However, in general, distinct physical mechanisms in these models account for the same feature of the nuclear force. Agreement with experiment is maintained in spite of these differences because of the large number of fit parameters. Systematic approaches to the scattering of strongly interacting particles, such as chiral perturbation theory, are based on the ideas of effective field theory (EFT). The author reviews recent progress in developing a systematic power counting scheme for scattering processes involving more than one nucleon.

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9 p.

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INIS; OSTI as DE99000272

Medium: P; Size: 9 p.

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  • MESON `98: international workshop on production, properties and interaction of mesons and conference on structure of mesons, baryons and nuclei, Cracow (Poland), 27-30 May 1998

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  • Other: DE99000272
  • Report No.: DOE/ER/40762--151
  • Report No.: CONF-9805110--
  • Grant Number: FG02-93ER40762
  • Office of Scientific & Technical Information Report Number: 674808
  • Archival Resource Key: ark:/67531/metadc709751

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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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  • June 1, 1998

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  • Sept. 12, 2015, 6:31 a.m.

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  • April 13, 2017, 2:57 p.m.

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Beane, S.R. Status of effective field theory of NN scattering, article, June 1, 1998; United States. (digital.library.unt.edu/ark:/67531/metadc709751/: accessed July 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.