The Pion-Nucleon Sigma Term and the Goldberger-Treiman Discrepancy

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dc.creatorSteele, James V.
dc.creatorYamagishi, Hidenaga
dc.creatorZahed, Ismail
dc.date1995-12-04
dc.date.accessioned2026-07-07T03:58:37Z
dc.date.available2026-07-07T03:58:37Z
dc.descriptionThe pion-nucleon sigma term is shown to be equal to the Goldberger-Treiman discrepancy at tree level. Its value estimated this way is very sensitive to the pion-nucleon coupling constant g_{pi NN}. This relation, when combined with the pion-nucleon S-wave scattering lengths, yields a new determination of g_{pi NN} at tree level. The results of a one-loop analysis are also summarized determining an allowed range for the induced pseudoscalar coupling constant g_P.
dc.description4 pages, revTeX, 1 figure
dc.identifierhttps://arxiv.org/abs/hep-ph/9512233
dc.identifierhttp://arxiv.org/abs/hep-ph/9512233
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/45887
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titleThe Pion-Nucleon Sigma Term and the Goldberger-Treiman Discrepancy
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