APS Logo

Structure of <sup>62</sup>Co

ORAL

Abstract

An extensive study of the level structure of 62Co has been performed following a complex multinucleon transfer reaction 26Mg( 48Ca, 2α3npγ) 62Co at beam energies of 275, 290 and 320 MeV. The combination of the Gammasphere array, the Fragment Mass Analyzer (FMA) and a focal-plane ionization chamber was used to identify and delineate excited levels in 62Co. As a result, the 62Co level scheme was considerably extended. Based on angular distribution measurements and DCO ratios, various level sequences built upon states of single-particle character were observed. An interpretation of these structures in the framework of the shell model will be presented and the evolution of collectivity in the A ∼ 60 region will be highlighted against the backdrop of the recently observed signatures of collectivity in 62,63Ni [1, 2] and 61Co [3].

[1] M. Albers, et. al. PRC 94, 034301 (2016)

[2] M. Albers, et. al. PRC 88, 054314 (2013)

[3] A. D. Ayangeakaa, et. al. PRC 91, 044327 (2015)

–

Presenters

  • Nirupama Sensharma

    University of North Carolina at Chapel Hill

Authors

  • Nirupama Sensharma

    University of North Carolina at Chapel Hill

  • Akaa D Ayangeakaa

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

  • Robert V Janssens

    University of North Carolina at Chapel Hill, Department of Physics & Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, NC-27599-3255, USA and Triangle Universities Nuclear Laboratory, Duke University,, University of North Carolina Chapel Hill

  • Matteo Fulghieri

    University of North Carolina at Chapel Hill

  • Shaofei Zhu

    Brookhaven National Laboratory, Brookhaven National Lab, Argonne National Laboratory

  • Michael P Carpenter

    Argonne National Laboratory, ANL

  • Alexandra Gade

    Michigan State University

  • Torben Lauritsen

    Argonne National Laboratory, ANL

  • D. Seweryniak

    Argonne National Laboratory, ANL

  • Christopher J Chiara

    US Army Research Lab Adelphi

  • Partha Chowdhury

    University of Massachusetts Lowell

  • Calem R Hoffman

    Argonne National Laboratory

  • Filip G Kondev

    Argonne National Laboratory, Physics Division, Argonne National Laboratory, Lemont, IL-60439

  • C.J. J Lister

    University of Massachusetts Lowell

  • Elizabeth McCutchan

    Brookhaven National Laboratory