Charge-radius change and nuclear moments in the heavy tin isotopes from laser spectroscopy: Charge radius of {sup 132}Sn
- Institut de Physique Nucleaire, IN2P3-CNRS, F-91406 Orsay Cedex (France)
- Laboratoire Aime Cotton, F-91405 Orsay Cedex (France)
- Physics Department, McGill University, Montreal, H3A 2T8 (Canada)
- Laboratoire de Physique Subatomique et Cosmologie, IN2P3-CNRS/Universite Joseph Fourier, F-38026 Grenoble Cedex (France)
- Institut fuer Physik der Universitaet Mainz, D-55099 Mainz (Germany)
- CERN, 1211 Geneva 23 (Switzerland)
Laser spectroscopy measurements have been carried out on the neutron-rich tin isotopes with the COMPLIS experimental setup. Using the 5s{sup 2}5p{sup 23}P{sub 0}{yields}5s{sup 2}5p6s {sup 3}P{sub 1} optical transition, hyperfine spectra of {sup 126-132}Sn and {sup 125,127,129-131}Sn{sup m} were recorded for the first time. The nuclear moments and the mean square charge radius variation ({delta}<r{sub c}{sup 2}>) were extracted. From the quadrupole moment values, these nuclei appear to be spherical. The magnetic moments measured are thus compared with those predicted by spherical basis approaches. From the measured {delta}<r{sub c}{sup 2}>, the absolute charge radii of these isotopes were deduced in particular that of the doubly magic {sup 132}Sn nucleus. The comparison of the results with several mean-field-type calculations have shown that dynamical effects play an important role in the tin isotopes.
- OSTI ID:
- 20698974
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 72, Issue 3; Other Information: DOI: 10.1103/PhysRevC.72.034305; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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