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Observation of the distribution of nuclear magnetization in a molecule.

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Title: Observation of the distribution of nuclear magnetization in a molecule.
Authors: Wilkins, S. G., Udrescu, S. M., Athanasakis-Kaklamanakis, M., Garcia Ruiz, R. F., Au, M., Belošević, I., Berger, R., Bissell, M. L., Breier, A. A., Brinson, A. J., Chrysalidis, K., Cocolios, T. E., de Groote, R. P., Dorne, A., Flanagan, K. T., Franchoo, S., Gaul, K., Geldhof, S., Giesen, T. F., Hanstorp, D.
Source: Science. 10/23/2025, Vol. 390 Issue 6771, p386-389. 4p.
Subjects: Magnetization, Particles (Nuclear physics), Particle physics, Radioactive substances, Laser spectroscopy, Radium isotopes
Abstract: Precise experimental control and interrogation of molecules and calculations of their structure are enriching the investigation of nuclear and particle physics phenomena. Molecules containing heavy, octupole-deformed nuclei, such as radium, are of particular interest. Here, we report precision laser spectroscopy measurements and theoretical calculations of the structure of the radioactive radium monofluoride molecule 225Ra19F. Our results reveal fine details of the short-range electron-nucleus interaction, indicating the high sensitivity of this molecule to the distribution of magnetization, within the radium nucleus. These results provide a stringent test of the description of the electronic wave function inside the nuclear volume, highlighting the suitability of these molecules for investigating subatomic phenomena. Editor's summary: Precision molecular spectroscopy is increasingly being used to probe symmetry violations relevant to fundamental physics studies. Of particular interest are molecules containing heavy radioactive nuclei, such as the pear-shaped radium isotope 225Ra. Wilkins et al. performed laser spectroscopy measurements of the hyperfine structure of the radium monofluoride molecule, which is especially challenging given the molecule's short lifetime. In combination with calculations, the researchers were able to test models of magnetization distribution inside the radium nucleus. Their findings may lead to improved tests of fundamental symmetries. —Jelena Stajic [ABSTRACT FROM AUTHOR]
Copyright of Science is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Observation of the distribution of nuclear magnetization in a molecule.
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  Data: <searchLink fieldCode="AR" term="%22Wilkins%2C+S%2E+G%2E%22">Wilkins, S. G.</searchLink><br /><searchLink fieldCode="AR" term="%22Udrescu%2C+S%2E+M%2E%22">Udrescu, S. M.</searchLink><br /><searchLink fieldCode="AR" term="%22Athanasakis-Kaklamanakis%2C+M%2E%22">Athanasakis-Kaklamanakis, M.</searchLink><br /><searchLink fieldCode="AR" term="%22Garcia+Ruiz%2C+R%2E+F%2E%22">Garcia Ruiz, R. F.</searchLink><br /><searchLink fieldCode="AR" term="%22Au%2C+M%2E%22">Au, M.</searchLink><br /><searchLink fieldCode="AR" term="%22Belošević%2C+I%2E%22">Belošević, I.</searchLink><br /><searchLink fieldCode="AR" term="%22Berger%2C+R%2E%22">Berger, R.</searchLink><br /><searchLink fieldCode="AR" term="%22Bissell%2C+M%2E+L%2E%22">Bissell, M. L.</searchLink><br /><searchLink fieldCode="AR" term="%22Breier%2C+A%2E+A%2E%22">Breier, A. A.</searchLink><br /><searchLink fieldCode="AR" term="%22Brinson%2C+A%2E+J%2E%22">Brinson, A. J.</searchLink><br /><searchLink fieldCode="AR" term="%22Chrysalidis%2C+K%2E%22">Chrysalidis, K.</searchLink><br /><searchLink fieldCode="AR" term="%22Cocolios%2C+T%2E+E%2E%22">Cocolios, T. E.</searchLink><br /><searchLink fieldCode="AR" term="%22de+Groote%2C+R%2E+P%2E%22">de Groote, R. P.</searchLink><br /><searchLink fieldCode="AR" term="%22Dorne%2C+A%2E%22">Dorne, A.</searchLink><br /><searchLink fieldCode="AR" term="%22Flanagan%2C+K%2E+T%2E%22">Flanagan, K. T.</searchLink><br /><searchLink fieldCode="AR" term="%22Franchoo%2C+S%2E%22">Franchoo, S.</searchLink><br /><searchLink fieldCode="AR" term="%22Gaul%2C+K%2E%22">Gaul, K.</searchLink><br /><searchLink fieldCode="AR" term="%22Geldhof%2C+S%2E%22">Geldhof, S.</searchLink><br /><searchLink fieldCode="AR" term="%22Giesen%2C+T%2E+F%2E%22">Giesen, T. F.</searchLink><br /><searchLink fieldCode="AR" term="%22Hanstorp%2C+D%2E%22">Hanstorp, D.</searchLink>
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  Data: <searchLink fieldCode="JN" term="%22Science%22">Science</searchLink>. 10/23/2025, Vol. 390 Issue 6771, p386-389. 4p.
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  Data: <searchLink fieldCode="DE" term="%22Magnetization%22">Magnetization</searchLink><br /><searchLink fieldCode="DE" term="%22Particles+%28Nuclear+physics%29%22">Particles (Nuclear physics)</searchLink><br /><searchLink fieldCode="DE" term="%22Particle+physics%22">Particle physics</searchLink><br /><searchLink fieldCode="DE" term="%22Radioactive+substances%22">Radioactive substances</searchLink><br /><searchLink fieldCode="DE" term="%22Laser+spectroscopy%22">Laser spectroscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Radium+isotopes%22">Radium isotopes</searchLink>
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  Data: Precise experimental control and interrogation of molecules and calculations of their structure are enriching the investigation of nuclear and particle physics phenomena. Molecules containing heavy, octupole-deformed nuclei, such as radium, are of particular interest. Here, we report precision laser spectroscopy measurements and theoretical calculations of the structure of the radioactive radium monofluoride molecule 225Ra19F. Our results reveal fine details of the short-range electron-nucleus interaction, indicating the high sensitivity of this molecule to the distribution of magnetization, within the radium nucleus. These results provide a stringent test of the description of the electronic wave function inside the nuclear volume, highlighting the suitability of these molecules for investigating subatomic phenomena. Editor's summary: Precision molecular spectroscopy is increasingly being used to probe symmetry violations relevant to fundamental physics studies. Of particular interest are molecules containing heavy radioactive nuclei, such as the pear-shaped radium isotope 225Ra. Wilkins et al. performed laser spectroscopy measurements of the hyperfine structure of the radium monofluoride molecule, which is especially challenging given the molecule's short lifetime. In combination with calculations, the researchers were able to test models of magnetization distribution inside the radium nucleus. Their findings may lead to improved tests of fundamental symmetries. —Jelena Stajic [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Science is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1126/science.adm7717
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        Text: English
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