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In-beam γ-spectroscopy with relativistic radioactive ion beams

  • Nuclear structure and reactions
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The European Physical Journal A - Hadrons and Nuclei Aims and scope Submit manuscript

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.

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Received: 2 August 1999

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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

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  • DOI: https://doi.org/10.1007/s100500050331

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