Phys. Rev. Lett. 102, 122503 (2009) [4 pages]Schottky Mass Measurement of the 208Hg Isotope: Implication for the Proton-Neutron Interaction Strength around Doubly Magic 208PbSee Also: Publisher's Note
See accompanying Physics Synopsis Time-resolved Schottky mass spectrometry has been applied to uranium projectile fragments which yielded the mass value for the 208Hg (Z=80, N=128) isotope. The mass excess value of ME=-13 265(31) keV has been obtained, which has been used to determine the proton-neutron interaction strength in 210Pb, as a double difference of atomic masses. The results show a dramatic variation of the strength for lead isotopes when crossing the N=126 neutron shell closure, thus confirming the empirical predictions that this interaction strength is sensitive to the overlap of the wave functions of the last valence neutrons and protons. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.102.122503
DOI:
10.1103/PhysRevLett.102.122503
PACS:
21.10.Dr, 21.60.−n, 27.80.+w, 29.20.db
See AlsoPublisher's Note: L. Chen et al., Publisher’s Note: Schottky Mass Measurement of the 208Hg Isotope: Implication for the Proton-Neutron Interaction Strength around Doubly Magic 208Pb [Phys. Rev. Lett. 102, 122503 (2009)], Phys. Rev. Lett. 102, 139904 (2009). |
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