Nuclear charge radii of potassium isotopes beyond N = 28

Kreim, Kim Dieter; Bissell, M.L.; Papuga, J.; Blaum, Klaus; De Rydt, M.; Garcia Ruiz, R.F.; Goriely, S.; Heylen, H.; Kowalska, M.; Neugart, R.; Neyens, G.; Nörtershäuser, W.; Rajabali, M.M.; Sánchez Alarcón, R.; Stroke, H.H.; Yordanov, Deyan T.

doi:10.1016/j.physletb.2014.02.012

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Nuclear charge radii of potassium isotopes beyond N = 28

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Kreim, Kim Dieter
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Blaum, Klaus
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

Neugart, R.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;
Institut für Kernchemie, Universität Mainz;

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Yordanov, Deyan T.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;
Physics Department, CERN;

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http://dx.doi.org/10.1016/j.physletb.2014.02.012
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1310.5171v1
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Citation

Kreim, K. D., Bissell, M., Papuga, J., Blaum, K., De Rydt, M., Garcia Ruiz, R., et al. (2014). Nuclear charge radii of potassium isotopes beyond N = 28. Physics Letters B, 731, 97-102. doi:10.1016/j.physletb.2014.02.012.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0015-854F-F

Abstract

We report on the measurement of optical isotope shifts for ^{38, 39, 42, 44, 46–51}K relative to ⁴⁷K from which changes in the nuclear mean square charge radii across the N=28 shell closure are deduced. The investigation was carried out by bunched-beam collinear laser spectroscopy at the CERN-ISOLDE radioactive ion-beam facility. Mean square charge radii are now known from ³⁷K to ⁵¹K, covering all νf_7/2-shell as well as all νp_3/2-shell nuclei. These measurements, in conjunction with those of Ca, Cr, Mn and Fe, provide a first insight into the Z dependence of the evolution of nuclear size above the shell closure at N=28.