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High-spin spectroscopy of <sup>64</sup>Cu

ORAL

Abstract



Medium and high-spin structures in 64Cu were investigated by means of the 26Mg(48Ca, αp5nγ) multinucleon transfer reaction. The experiment was performed at the ATLAS accelerator facility at Argonne National Laboratory using the Gammasphere multidetector array and the fragment mass analyzer (FMA). Two high-spin, quasi-rotational bands consisting of stretched-E2 transitions were observed in coincidence with the known low-spin structure. These bands share remarkable similarities with super-deformed bands observed in the region. In addition, a regular dipole sequence with E2 crossover transitions was observed as well. A general discussion of the observed structures, complemented by theoretical calculations, will be presented in the context of shell structure evolution and collectivity in the A ~ 60 region.

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Presenters

  • Antonella Saracino

    University of North Carolina at Chapel Hill

Authors

  • Antonella Saracino

    University of North Carolina at Chapel Hill

  • Akaa D Ayangeakaa

    University of North Carolina at Chapel H, University of North Carolina Chapel Hill

  • Nirupama Sensharma

    University of North Carolina at Chapel Hill

  • Robert V.F. V Janssens

    University of North Carolina at Chapel Hill, University of North Carolina at Chapel Hill, Triangle Universities Nuclear Laboratory

  • Q. B Chen

    East China Normal University, Shanghai

  • M. P Carpenter

    Argonne National Laboratory, Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA

  • Partha Chowdhury

    University of Massachusetts Lowell

  • Alexandra Gade

    Michigan State University, NSCL Michigan State University, FRIB

  • Calem R Hoffman

    Argonne National Laboratory

  • Filip G Kondev

    Argonne National Laboratory, Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA

  • T. Lauritsen

    Argonne National Laboratory, Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA

  • Elizabeth McCutchan

    Brookhaven National Laboratory

  • Andrew Rogers

    University of Massachusetts Lowell, University of Massachusetts-Lowell

  • D. Seweryniak

    Argonne National Laboratory, Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA