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Discovery of (229)Rn and the Structure of the Heaviest Rn and Ra Isotopes from Penning-Trap Mass Measurements

Abstract : The masses of the neutron-rich radon isotopes (223-229)Rn have been determined for the first time, using the ISOLTRAP setup at CERN ISOLDE. In addition, this experiment marks the first discovery of a new nuclide, (229)Rn, by Penning-trap mass measurement. The new, high-accuracy data allow a fine examination of the mass surface, via the valence-nucleon interaction delta V(pn). The results reveal intriguing behavior, possibly reflecting either a N=134 subshell closure or an octupolar deformation in this region.
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http://hal.in2p3.fr/in2p3-00677683
Contributor : Christine Hadrossek <>
Submitted on : Friday, March 9, 2012 - 11:15:38 AM
Last modification on : Wednesday, October 14, 2020 - 3:59:47 AM

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D. Neidherr, G. Audi, D. Beck, K. Blaum, C. Bohm, et al.. Discovery of (229)Rn and the Structure of the Heaviest Rn and Ra Isotopes from Penning-Trap Mass Measurements. Physical Review Letters, American Physical Society, 2009, 102, pp.112501. ⟨10.1103/PhysRevLett.102.112501⟩. ⟨in2p3-00677683⟩

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