Abstract.
High-spin states in 63Cu were investigated through in-beam \(\gamma\)-ray spectroscopic techniques using the 52Cr(18O,\(\alpha\)p2n) fusion-evaporation reaction at a beam energy of 72.5 MeV. The \(\gamma\)-rays emitted by the excited nucleus were recorded in the coincidence mode using fourteen Compton suppressed Ge clover detectors of the Indian National Gamma-ray Array (INGA). Based on the \(\gamma\)-\(\gamma\) coincidence data, twenty-one new \(\gamma\)-ray transitions have been observed and placed --thereby extending the level scheme of 63Cu up to spin \(25/2\hbar\) and excitation energy \(\sim 8.36\) MeV. Shell model calculations are performed in the \(f_{5/2}pg_{9/2}\) model space with a 56Ni core using two effective interactions, viz. JUN45 and jj44b to interpret the observed excited states of this nucleus. A reasonable agreement is found between the experimental finding and the shell-model calculations --which implies that the excitations within the \(f_{5/2}p_{3/2}p_{1/2}\) orbitals are more dominant in defining the observed level structure than the excitation across the magic shell gap \(N = Z = 28\).
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Rai, S., Mukherjee, B., Ghosh, U.S. et al. High spin states in 63Cu. Eur. Phys. J. A 54, 84 (2018). https://doi.org/10.1140/epja/i2018-12518-2
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DOI: https://doi.org/10.1140/epja/i2018-12518-2