Open AccessMasses and Charge Radii ofNe 17 – 22 Ne 17
Author(s) -
W. Geithner,
Thomas Neff,
G. Audi,
K. Blaum,
P. Delahaye,
H. Feldmeier,
S. George,
C. Guénaut,
F. Herfurth,
A. Herlert,
S. Kappertz,
M. Keim,
A. Kellerbauer,
H.-J. Kluge,
M. Kowalska,
Peter Lievens,
D. Lunney,
K. Marinova,
R. Neugart,
L. Schweikhard,
S. Wilbert,
C. Yazidjian
Publication year - 2008
Publication title -
physical review letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.688
H-Index - 673
eISSN - 1079-7114
pISSN - 0031-9007
DOI - 10.1103/physrevlett.101.252502
Subject(s) - radius , physics , charge radius , charge (physics) , proton , halo , atomic physics , analytical chemistry (journal) , particle physics , nuclear physics , astrophysics , chemistry , computer security , computer science , chromatography , galaxy
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
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