Shape evolution and Gamow-Teller β -decay of neutron-rich A∼100 nuclei within beyond-mean-field approach

Neutron-rich nuclei in the A∼100 mass region manifest drastic changes in some isotopic chains and sudden variations of particular nuclear properties with increasing spin and excitation energy. Our recent investigations represent an attempt to the self-consistent description of exotic phenomena in neutron-rich A∼100 nuclei within the complex Excited Vampir model using a realistic effective interaction in a large model space. Triple shape coexistence and shape evolution in the N=58 Sr and Zr isotopes as well as Gamow-Teller β-decay of 102,104Tc nuclei are discussed. (authors)