Medium heavy nuclei with mass number A=60-90 exhibit a variety of complex collective properties, provide a laboratory for double beta decay studies, and are a region of all heavy N=Z nuclei. This book discusses these three aspects of nuclear structure using Deformed Shell Model and the Spin-Isospin Invariant Interacting Boson Model naturally generated by fermionic SO(8) symmetry. Using these two models, the book describes properties of medium heavy nuclei with mass number A=60-90. It provides a good reference for future nuclear structure experiments using radioactive ion beam (RIB) facilities. Various results obtained by the authors and other research groups are also explained in this book.
Introduction.Deformed shell model (DSM). Deformed shell model results for spectroscopy of A=60-90 nuclei. Applications of deformed shell model. Deformed shell model for Double beta decay in A=60-90 nuclei. Heavy N=Z nuclei: SU(4) structure, Wigner energy and isovector and isosclar pairing. SO(8) fermion pairing model to spin-isospin interacting boson model (IBM-ST).Spin-isospin interacting boson model (IBM-ST). IBM-ST results for deuteron transfer and GT strengths. Interacting boson model with isospin T = 1 bosons. Deformed shell model results for spectroscopy of heavy N=Z nuclei. Future outlook.