Phys. Rev. Lett. 98, 112502 (2007) [4 pages]Nuclear Charge Radii of Neutron-Deficient Lead Isotopes Beyond N=104 Midshell Investigated by In-Source Laser SpectroscopyReceived 7 December 2006; published 16 March 2007 The shape of exotic even-mass 182–190Pb isotopes was probed by measurement of optical isotope shifts providing mean square charge radii (δ⟨r2⟩). The experiment was carried out at the isolde (cern) on-line mass separator, using in-source laser spectroscopy. Small deviations from the spherical droplet model are observed, but when compared to model calculations, those are explained by high sensitivity of δ⟨r2⟩ to beyond mean-field correlations and small admixtures of intruder configurations in the ground state. The data support the predominantly spherical shape of the ground state of the proton-magic Z=82 lead isotopes near neutron midshell (N=104). © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.98.112502
DOI:
10.1103/PhysRevLett.98.112502
PACS:
21.10.Ft, 23.60.+e, 27.70.+q, 42.62.Fi
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.