Nuclear structure, double beta decay and giant resonances

This chapter attempts to justify the study of large nuclei by showing, for example, that the double beta decay process is enhanced in large nuclei where pairing correlations are important. Discusses shell model calculation; more than two particles in the f /sub 7/2/ shell; neutrons and protons in the f /sub 7/2/ shell; application to magnetic moments; spectroscopic strengths; single beta decay; double beta decay; the K selection rule of Lawson; double beta decay in heavier nuclei; coherent pairing effects; the effect of delta particle-nucleon hole admixtures on double beta decay; giant resonances; soluble model-monopole-monopole interaction; core polarization with the monopole-monopole interaction; isoscalar quadrupole resonances; schematic vs. delta interaction-degenerate model; Skyrme interaction for the isoscalar quadrupole state (also isoscalar); spin dependent models; higher order effects in core polarization; and E6 suppression (open shell nucleus effect?). Demonstrates that open shell effects can be very important and that they should be thoroughly investigated before more exotic mechanisms are proposed