Abstract:
This work demonstrates the feasibility of in-beam γ-spectroscopy employing radioactive ion beam species at relativistic energies of E = 210 ∼ 280 A· MeV. Neutron-rich nuclei below 48Ca with neutron number between the two magic numbers 20 and 28 have been investigated. Using a Pb target, single step inelastic excitation originating mainly from Coulomb interaction takes place populating preferentially low-lying low-spin states and enabling the extraction of B(E2) values. On a C target, nucleon removal reactions are dominating and medium-spin states are populated thus offering spectroscopic information in neighboring nuclei. Cross sections of inelastic excitation are determined and compared to coupled-channels calculations. Two new states of the very neutron-rich nucleus 44Ar at 1.78(8) MeV and 2.61(16) MeV are deduced from γ-transitions.
Similar content being viewed by others
Author information
Authors and Affiliations
Additional information
Received: 2 August 1999
Rights and permissions
About this article
Cite this article
Wan, S., Gerl, J., Cub, J. et al. In-beam γ-spectroscopy with relativistic radioactive ion beams . EPJ A 6, 167–174 (1999). https://doi.org/10.1007/s100500050331
Issue Date:
DOI: https://doi.org/10.1007/s100500050331