Laser Spectroscopy of Neutron-Rich Tin Isotopes: A Discontinuity in Charge Radii across the Shell Closure
Abstract
The change in mean-square nuclear charge radii δ < r2 > along the even-A tin isotopic chain 108–134Sn has been investigated by means of collinear laser spectroscopy at ISOLDE/CERN using the atomic transitions 5p2 1S0 → 5p6 s1P1 and 5p2 3P0 → 5p6s 3P1. With the determination of the charge radius of 134Sn and corrected values for some of the neutron-rich isotopes, the evolution of the charge radii across the N = 82 shell closure is established. A clear kink at the doubly magic 132Sn is revealed, similar to what has been observed at N = 82 in other isotopic chains with larger proton numbers, and at the N = 126 shell closure in doubly magic 208Pb. While most standard nuclear density functional calculations struggle with a consistent explanation of these discontinuities, we demonstrate that a recently developed Fayans energy density functional provides a coherent description of the kinks at both doubly magic nuclei, 132Sn and 208Pb, without sacrificing the overall performance. A multiple correlation analysis leads to the conclusion that both kinks are related to pairing and surface effects.
- Authors:
- more »
- Publication Date:
- Research Org.:
- Michigan State Univ., East Lansing, MI (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1513045
- Alternate Identifier(s):
- OSTI ID: 1611980
- Grant/Contract Number:
- SC0013365; SC0018083
- Resource Type:
- Published Article
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Name: Physical Review Letters Journal Volume: 122 Journal Issue: 19; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Physics; Nuclear charge distribution; Nuclear density functional theory
Citation Formats
Gorges, C., Rodríguez, L. V., Balabanski, D. L., Bissell, M. L., Blaum, K., Cheal, B., Garcia Ruiz, R. F., Georgiev, G., Gins, W., Heylen, H., Kanellakopoulos, A., Kaufmann, S., Kowalska, M., Lagaki, V., Lechner, S., Maaß, B., Malbrunot-Ettenauer, S., Nazarewicz, W., Neugart, R., Neyens, G., Nörtershäuser, W., Reinhard, P. -G., Sailer, S., Sánchez, R., Schmidt, S., Wehner, L., Wraith, C., Xie, L., Xu, Z. Y., Yang, X. F., and Yordanov, D. T. Laser Spectroscopy of Neutron-Rich Tin Isotopes: A Discontinuity in Charge Radii across the N = 82 Shell Closure. United States: N. p., 2019.
Web. doi:10.1103/PhysRevLett.122.192502.
Gorges, C., Rodríguez, L. V., Balabanski, D. L., Bissell, M. L., Blaum, K., Cheal, B., Garcia Ruiz, R. F., Georgiev, G., Gins, W., Heylen, H., Kanellakopoulos, A., Kaufmann, S., Kowalska, M., Lagaki, V., Lechner, S., Maaß, B., Malbrunot-Ettenauer, S., Nazarewicz, W., Neugart, R., Neyens, G., Nörtershäuser, W., Reinhard, P. -G., Sailer, S., Sánchez, R., Schmidt, S., Wehner, L., Wraith, C., Xie, L., Xu, Z. Y., Yang, X. F., & Yordanov, D. T. Laser Spectroscopy of Neutron-Rich Tin Isotopes: A Discontinuity in Charge Radii across the N = 82 Shell Closure. United States. https://doi.org/10.1103/PhysRevLett.122.192502
Gorges, C., Rodríguez, L. V., Balabanski, D. L., Bissell, M. L., Blaum, K., Cheal, B., Garcia Ruiz, R. F., Georgiev, G., Gins, W., Heylen, H., Kanellakopoulos, A., Kaufmann, S., Kowalska, M., Lagaki, V., Lechner, S., Maaß, B., Malbrunot-Ettenauer, S., Nazarewicz, W., Neugart, R., Neyens, G., Nörtershäuser, W., Reinhard, P. -G., Sailer, S., Sánchez, R., Schmidt, S., Wehner, L., Wraith, C., Xie, L., Xu, Z. Y., Yang, X. F., and Yordanov, D. T. Thu .
"Laser Spectroscopy of Neutron-Rich Tin Isotopes: A Discontinuity in Charge Radii across the N = 82 Shell Closure". United States. https://doi.org/10.1103/PhysRevLett.122.192502.
@article{osti_1513045,
title = {Laser Spectroscopy of Neutron-Rich Tin Isotopes: A Discontinuity in Charge Radii across the N = 82 Shell Closure},
author = {Gorges, C. and Rodríguez, L. V. and Balabanski, D. L. and Bissell, M. L. and Blaum, K. and Cheal, B. and Garcia Ruiz, R. F. and Georgiev, G. and Gins, W. and Heylen, H. and Kanellakopoulos, A. and Kaufmann, S. and Kowalska, M. and Lagaki, V. and Lechner, S. and Maaß, B. and Malbrunot-Ettenauer, S. and Nazarewicz, W. and Neugart, R. and Neyens, G. and Nörtershäuser, W. and Reinhard, P. -G. and Sailer, S. and Sánchez, R. and Schmidt, S. and Wehner, L. and Wraith, C. and Xie, L. and Xu, Z. Y. and Yang, X. F. and Yordanov, D. T.},
abstractNote = {The change in mean-square nuclear charge radii δ < r2 > along the even-A tin isotopic chain 108–134Sn has been investigated by means of collinear laser spectroscopy at ISOLDE/CERN using the atomic transitions 5p2 1S0 → 5p6 s1P1 and 5p2 3P0 → 5p6s 3P1. With the determination of the charge radius of 134Sn and corrected values for some of the neutron-rich isotopes, the evolution of the charge radii across the N = 82 shell closure is established. A clear kink at the doubly magic 132Sn is revealed, similar to what has been observed at N = 82 in other isotopic chains with larger proton numbers, and at the N = 126 shell closure in doubly magic 208Pb. While most standard nuclear density functional calculations struggle with a consistent explanation of these discontinuities, we demonstrate that a recently developed Fayans energy density functional provides a coherent description of the kinks at both doubly magic nuclei, 132Sn and 208Pb, without sacrificing the overall performance. A multiple correlation analysis leads to the conclusion that both kinks are related to pairing and surface effects.},
doi = {10.1103/PhysRevLett.122.192502},
journal = {Physical Review Letters},
number = 19,
volume = 122,
place = {United States},
year = {Thu May 16 00:00:00 EDT 2019},
month = {Thu May 16 00:00:00 EDT 2019}
}
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https://doi.org/10.1103/PhysRevLett.122.192502
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