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Meson-baryon coupling constants and baryon-baryon interactions

✍ Scribed by V.G.J. Stoks

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
236 KB
Volume
629
Category
Article
ISSN
0375-9474

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✦ Synopsis

We present a chiral-invariant SU(3) Lagrangian describing the interactions of the baryon octet with the lowest-mass meson nonets. Empirical estimates for the strengths of these vertices are given. The nonlinear realization of the chiral symmetry generates pair-meson interaction vertices, the coupling constants for which contain no new free parameters. A baryon-baryon potential is evaluated and its quality is examined for the NN sector.

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In this talk I review recent advances on the structure of the meson and baryon resonances which can be dynamically generated from the interaction of mesons or mesons and baryons. Particular emphasis is put on results involving vector mesons, which bring new light into the nature of some of the obser