Abstract
The mass of57Cu has been measured with the58Ni(14N,15C)-reaction at 150 MeV incident energy with theQ 3D-spectrometer. The reaction has been selected after a careful inspection of the DWBA-expression for the cross section with respect to the highest weighting factors for spins andl-transfer. Cross sections of several μb/sr have been obtained. TheQ-value has been measured to beQ 0=−19.90 (4) MeV and the57Cu mass excess is −47 340 (40) keV. Four lines of excited states have been observed up to 5.7 MeV. These states have a structure of single particle character, since57Cu consists of a doubly closed core with N=Z=28 and a proton outside, and states up to the 2d 5-shell are observed.
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On leave from the Institute for Nuclear Research, Shanghai, The People's Republic of China
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Stiliaris, E., Bohlen, H.G., Chen, X.S. et al. Mass measurement and spectroscopy of57Cu with the58Ni(14N,15C)-reaction. Z. Physik A - Atomic Nuclei 326, 139–146 (1987). https://doi.org/10.1007/BF01283588
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DOI: https://doi.org/10.1007/BF01283588