Structure and Reaction Studies of Loosely Bound Nuclei Using Radioactive Nuclear Beams

Coulomb breakup of neutron-rich nuclei around mass A ∼ 20 has been studied experimentally using secondary beams (∼ 500–600 MeV/u) of unstable nuclei produced at GSI. The spectroscopic factors deduced for the neutron occupying s1/2 level in 15C and 14B ground state is consistent with the earlier reported values. The data analysis for Coulomb breakup of 17C shows that most of the cross section yields the 16C core in its excited state. For 17-22O, the low-lying E1 strength amounts up to about 12% of the energy weighted dipole sum rule strength depending on neutron excess.