Giant quadrupole resonances and their effects on neutron-rich nuclei Original Research Article

Quadrupole giant resonances (GQR) play a major role in characterizing dynamical properties of both stable and unstable nuclei. In this paper two topics related with GQR are discussed based on recent experimental findings at RIKEN; 1) clear observation of isovector GQR in a heavy ion charge-exchange reaction, (13C, 13N) on 60Ni at 100 MeV/nucleon, and 2) E2 effective charges varying with isospin asymmetry as evidenced by the electric quadrupole moments of neutron rich B isotopes.