Masses and Charge Radii of Ne17-22 and the Two-Proton-Halo Candidate Ne-17 - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Journal Articles Physical Review Letters Year : 2008

Masses and Charge Radii of Ne17-22 and the Two-Proton-Halo Candidate Ne-17

W. Geithner
  • Function : Author
T. Neff
  • Function : Author
G. Audi
  • Function : Author
K. Blaum
P. Delahaye
  • Function : Author
H. Feldmeier
  • Function : Author
S. George
  • Function : Author
C. Guenaut
F. Herfurth
  • Function : Author
A. Herlert
  • Function : Author
S. Kappertz
  • Function : Author
M. Keim
  • Function : Author
A. Kellerbauer
  • Function : Author
H.-J. Kluge
  • Function : Author
M. Kowalska
  • Function : Author
P. Lievens
  • Function : Author
K. Marinova
  • Function : Author
R. Neugart
  • Function : Author
L. Schweikhard
  • Function : Author
S. Wilbert
  • Function : Author
C. Yazidjian
  • Function : Author

Abstract

High-precision mass and charge radius measurements on Ne17-22, including the proton-halo candidate Ne-17, have been performed with Penning trap mass spectrometry and collinear laser spectroscopy. The Ne-17 mass uncertainty is improved by factor 50, and the charge radii of Ne17-19 are determined for the first time. The fermionic molecular dynamics model explains the pronounced changes in the ground-state structure. It attributes the large charge radius of Ne-17 to an extended proton configuration with an s(2) component of about 40%. In Ne-18 the smaller radius is due to a significantly smaller s(2) component. The radii increase again for Ne19-22 due to cluster admixtures.

Dates and versions

in2p3-00854110 , version 1 (26-08-2013)

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Cite

W. Geithner, T. Neff, G. Audi, K. Blaum, P. Delahaye, et al.. Masses and Charge Radii of Ne17-22 and the Two-Proton-Halo Candidate Ne-17. Physical Review Letters, 2008, 101, pp.252502. ⟨10.1103/PhysRevLett.101.252502⟩. ⟨in2p3-00854110⟩
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