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

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.
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http://hal.in2p3.fr/in2p3-00854110
Contributor : Christine Hadrossek <>
Submitted on : Monday, August 26, 2013 - 12:06:44 PM
Last modification on : Wednesday, September 16, 2020 - 5:42:43 PM

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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, American Physical Society, 2008, 101, pp.252502. ⟨10.1103/PhysRevLett.101.252502⟩. ⟨in2p3-00854110⟩

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