Coulomb excitation of unstable nuclei at intermediate energies

Bertulani, C. A.; Cardella, G.; De Napoli, M.; Raciti, G.; Rapisarda, E.

Coulomb excitation of unstable nuclei at intermediate energies

Authors

Description

We investigate the Coulomb excitation of low-lying states of unstable nuclei in intermediate energy collisions ($E_{lab}\sim10-500$ MeV/nucleon). It is shown that the cross sections for the $E1$ and $E2$ transitions are larger at lower energies, much less than 10 MeV/nucleon. Retardation effects and Coulomb distortion are found to be both relevant for energies as low as 10 MeV/nucleon and as high as 500 MeV/nucleon. Implications for studies at radioactive beam facilities are discussed.
12 pages, 2 figures, accepted for publication in Phys. Lett. B