Charge radii of neutron-deficient <sup>55, 56</sup>Ni

ORAL

Abstract

The 56Ni nucleus is doubly magic with the neutron number N = 28, which occurs due to a shell gap driven by the spin-orbit force, but is considered to be a soft core. The mean-square charge radii <r2> were determined for 55, 56Ni using collinear laser spectroscopy technique at BECOLA at NSCL/MSU to investigate how the softness manifests itself in <r2> at and below N = 28, and to benchmark nuclear theories. Details of the experiment and preliminary results will be presented.

*Work supported in part by NSF grant PHY-15-65546, U.S. DOE grant DE-NA0002924 and DFG grant SFB1245.

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Presenters

  • K. Minamisono

    • NSCL/Dep. Phys. Astron., MSU
    • Michigan State University
    • NSCL

Authors

  • K. Minamisono

    • NSCL/Dep. Phys. Astron., MSU
    • Michigan State University
    • NSCL

  • D. M. Rossi

    • Institute für Kernphysik, Technische Universität Darmstadt
    • Inst. Kernphysik, TU Darmstadt

  • N. Everett

    • NSCL/Dep. Phys. Astron., MSU

  • D. Garand

    • NSCL, MSU

  • R. P. de Groote

    • Dep. Phys. Univ. Jyväskylä

  • P. Imgram

    • Inst. Kernphysik, TU Darmstadt

  • C. Kalman

    • NSCL/Dep. Chem., MSU

  • A. Klose

    • Department of Chemistry, Augustana University
    • Dep. Chem., Augustana Univ.

  • J. D. D Lantis

    • NSCL/Dep. Chem., MSU
    • Michigan State University
    • NSCL

  • Y. Liu

    • Phys. Divi., ORLN

  • P. F. Mantica

    • FRIB
    • FRIB/Dep. Chem., MSU

  • A. J. Miller

    • Michigan State University
    • NSCL
    • NSCL/Dep. Phys. Astron., MSU

  • Witold Nazarewicz

    • FRIB
    • FRIB/Dep. Phys. Astron., MSU
    • Michigan State Univ
    • Michigan State University

  • W. Nörtershäuser

    • Inst. Kernphysik, TU Darmstadt

  • R. C. Powel

    • NSCL/Dep. Phys. Astron., MSU
    • NSCL

  • P. -G. Reinhard

    • Institute für Theoretische Physik, Universität Erlangen
    • Ins. Theo. Phys., Univ. Erlangen-Numberg

  • E. Romeo-Romero

    • Department of Physics and Astronomy, University of Tennessee, Knoxville, TN 37966, USA
    • UT Knoxville/ORLN

  • F. Sommer

    • Inst. Kernphysik, TU Darmstadt

  • C. S. Sumithrarachchi

    • Michigan State Univ
    • NSCL
    • NSCL, MSU
    • National Superconducting Cyclotron Laboratory

  • A. Teigelhöfer

    • TRIUMF