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  • PACS: 25.60.+v reactions induced by unstable nuclei – 25.75.+r relativistic heavy ion collisions – 23.20.Lv gamma transitions and level energies – 27.40.+z 39 〈 A 〈 58 – 29.30.Kv X- and γ-ray spectroscopy  (1)
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    ISSN: 1434-601X
    Keywords: PACS: 25.60.+v reactions induced by unstable nuclei – 25.75.+r relativistic heavy ion collisions – 23.20.Lv gamma transitions and level energies – 27.40.+z 39 〈 A 〈 58 – 29.30.Kv X- and γ-ray spectroscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: 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.
    Type of Medium: Electronic Resource
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