Publications by authors named "A Goldkuhle"
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View Article and Find Full Text PDFThere is sparse direct experimental evidence that atomic nuclei can exhibit stable "pear" shapes arising from strong octupole correlations. In order to investigate the nature of octupole collectivity in radium isotopes, electric octupole (E3) matrix elements have been determined for transitions in ^{222,228}Ra nuclei using the method of sub-barrier, multistep Coulomb excitation. Beams of the radioactive radium isotopes were provided by the HIE-ISOLDE facility at CERN.
View Article and Find Full Text PDFArticle Synopsis
- Atomic nuclei can take on a pear shape through octupole distortion, which is significant for studying electric-dipole moments and potential CP violation—an area of interest for physics beyond the Standard Model.
- Researchers identified radon and radium isotopes as key candidates for these measurements.
- Observations of radon isotopes revealed that while they exhibit octupole vibrations, they do not have a static pear shape in their ground states, making them less suitable for enhancing measurable atomic electric-dipole moments.