Bulletin of the American Physical Society
5th Joint Meeting of the APS Division of Nuclear Physics and the Physical Society of Japan
Volume 63, Number 12
Tuesday–Saturday, October 23–27, 2018; Waikoloa, Hawaii
Session ED: Mini-Symposium: The Structural Diversity of Nuclei in the Proximity of N=20 and 28 II
7:00 PM–8:45 PM,
Thursday, October 25, 2018
Hilton
Room: Kohala 3
Chair: Michael D. Jones, University of North Carolina
Abstract ID: BAPS.2018.HAW.ED.5
Abstract: ED.00005 : Charge radii of neutron-deficient 55, 56Ni*
8:00 PM–8:15 PM
Presenter:
K. Minamisono
(NSCL/Dep. Phys. Astron., MSU)
Authors:
K. Minamisono
(NSCL/Dep. Phys. Astron., MSU)
D. M. Rossi
(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
(Dep. Chem., Augustana Univ.)
J. D. Lantis
(NSCL/Dep. Chem., MSU)
Y. Liu
(Phys. Divi., ORLN)
P. F. Mantica
(FRIB/Dep. Chem., MSU)
A. J. Miller
(NSCL/Dep. Phys. Astron., MSU)
W. Nazarewicz
(FRIB/Dep. Phys. Astron., MSU)
W. Nörtershäuser
(Inst. Kernphysik, TU Darmstadt)
R. C. Powel
(NSCL/Dep. Phys. Astron., MSU)
P. -G. Reinhard
(Ins. Theo. Phys., Univ. Erlangen-Numberg)
E. Romeo-Romero
(UT Knoxville/ORLN)
F. Sommer
(Inst. Kernphysik, TU Darmstadt)
C. Sumithrarachchi
(NSCL, MSU)
A. Teigelhöfer
(TRIUMF)
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.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.HAW.ED.5
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