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Updated: Mar 26, 2026
14:55
Atomic Scale Structural Studies of Macromolecular Assemblies by Solid-state Nuclear Magnetic Resonance Spectroscopy
Published on: September 17, 2017
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Simple Nuclear Structure in (111-129)Cd from Atomic Isomer Shifts.
D T Yordanov1,2,3, D L Balabanski4, M L Bissell5
1Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay, France.
Physical Review Letters
|February 6, 2016
Summary
Nuclear isomer shifts in Cadmium (Cd) isotopes reveal a parabolic trend in mean square charge radii. This suggests a higher-order symmetry, explained by nuclear deformation and supported by advanced nuclear theory.
Area of Science:
- Nuclear Physics
- Atomic Physics
- Spectroscopy
Background:
- Isomer shifts provide insights into nuclear structure and charge distribution.
- Previous studies noted linear mass dependence for isomer quadrupole moments.
Purpose of the Study:
- To determine isomer shifts in Cadmium (Cd) isotopes using high-resolution laser spectroscopy.
- To investigate the charge radii changes between ground states and isomers.
- To explore the underlying nuclear symmetry and deformation.
Main Methods:
- High-resolution laser spectroscopy at CERN-ISOLDE.
- Measurement of isomer shifts in Cadmium (Cd) isotopes (111-129).
- Analysis of mean square charge radii differences.
Main Results:
- Isomer shifts exhibit a distinct parabolic dependence on atomic mass number.
- Mean square charge radii changes follow this parabolic trend.
- Nuclear deformation model accurately reproduces radii differences and quadrupole moments.
Conclusions:
- The observed regularity suggests a higher-order symmetry affecting both ground states and isomers.
- Nuclear deformation provides a comprehensive explanation for the experimental findings.
- Covariant density functional theory supports the interpretation of nuclear deformation.
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