Role of Pions and Isobars in Nuclei
Nuclear dynamics should be based on QCD with quarks and gluons interacting via a gauge field. But as we have learned during this summer school, a complete treatment of interacting quarks and gluons is hard even for a simple system like a nucléon. In order to calculate properties of a nuclear many-body system, a quark and gluon model appears prohibitively difficult. One may be able to gain some insight from non-relativistic quark models and the use of symmetry properties to relate some relevant quantities like coupling constants and masses of various particles.
KeywordsQuark Model Core Polarization Axial Charge Nuclear Response Meson Exchange Current
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