Realistic pseudoscalar-vector Lagrangian. Static and dynamical baryon properties

Ulf G. Meissner, N. Kaiser, H. Weigel, J. Schechter

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Abstract

We investigate electromagnetic and axial-vector currents and the corresponding form factors as well as meson-nucleon form factors within the framework of a nonlinear chiral Lagrangian constructed by Jain, Johnson, Meissner, Park, and Schechter in Phys. Rev. D 37, 3252 (1988). We employ an unambiguous procedure to construct the electroweak current densities. This brings in a parameter, related to the 0 decay rate, which does not appear in the strong-interaction part of the Lagrangian. This results in a fairly accurate description of the nucleons properties. The effects of coupling to a two-flavor meson are shown to be small.

Original languageEnglish
Pages (from-to)1956-1972
Number of pages17
JournalPhysical Review D
Volume39
Issue number7
DOIs
StatePublished - 1989
Externally publishedYes

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