A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Nuclear moments of indium isotopes reveal abrupt change at magic number 82 (2022)

Vernon, A. R., Garcia Ruiz, R. F., Miyagi, T., Binnersley, C. L., Billowes, J., Bissell, M. L., Bonnard, J., Cocolios, T. E., Dobaczewski, J., Farooq-Smith, G. J., Flanagan, K. T., Georgiev, G., Gins, W., de Groote, R. P., Heinke, R., Holt, J. D., Hustings, J., Koszorús, Á., Leimbach, D., . . . Yordanov, D. T. (2022). Nuclear moments of indium isotopes reveal abrupt change at magic number 82. Nature, 607(7918), 260-265. https://doi.org/10.1038/s41586-022-04818-7

JYU-tekijät tai -toimittajat

Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajat: Vernon, A. R.; Garcia Ruiz, R. F.; Miyagi, T.; Binnersley, C. L.; Billowes, J.; Bissell, M. L.; Bonnard, J.; Cocolios, T. E.; Dobaczewski, J.; Farooq-Smith, G. J.; et al.

Lehti tai sarja: Nature

ISSN: 0028-0836

eISSN: 1476-4687

Julkaisuvuosi: 2022

Ilmestymispäivä: 13.07.2022

Volyymi: 607

Lehden numero: 7918

Artikkelin sivunumerot: 260-265

Kustantaja: Nature Publishing Group

Julkaisumaa: Britannia

Julkaisun kieli: englanti

DOI: https://doi.org/10.1038/s41586-022-04818-7

Linkki tutkimusaineistoon: https://doi.org/10.5281/zenodo.6406949

Julkaisun avoin saatavuus: Ei avoin

Julkaisukanavan avoin saatavuus: 

Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/85026

Julkaisu on rinnakkaistallennettu: https://eprints.whiterose.ac.uk/191938/

Rinnakkaistallenteen verkko-osoite (pre-print): https://assets.researchsquare.com/files/rs-611360/v1_covered.pdf?c=1657782415

Tiivistelmä

In spite of the high-density and strongly correlated nature of the atomic nucleus, experimental and theoretical evidence suggests that around particular ‘magic’ numbers of nucleons, nuclear properties are governed by a single unpaired nucleon1,2. A microscopic understanding of the extent of this behaviour and its evolution in neutron-rich nuclei remains an open question in nuclear physics3,4,5. The indium isotopes are considered a textbook example of this phenomenon6, in which the constancy of their electromagnetic properties indicated that a single unpaired proton hole can provide the identity of a complex many-nucleon system6,7. Here we present precision laser spectroscopy measurements performed to investigate the validity of this simple single-particle picture. Observation of an abrupt change in the dipole moment at N = 82 indicates that, whereas the single-particle picture indeed dominates at neutron magic number N = 82 (refs. 2,8), it does not for previously studied isotopes. To investigate the microscopic origin of these observations, our work provides a combined effort with developments in two complementary nuclear many-body methods: ab initio valence-space in-medium similarity renormalization group and density functional theory (DFT). We find that the inclusion of time-symmetry-breaking mean fields is essential for a correct description of nuclear magnetic properties, which were previously poorly constrained. These experimental and theoretical findings are key to understanding how seemingly simple single-particle phenomena naturally emerge from complex interactions among protons and neutrons.

YSO-asiasanat: ydinfysiikka; indium; isotoopit; tiheysfunktionaaliteoria

Liittyvät organisaatiot

Hankkeet, joissa julkaisu on tehty

OKM-raportointi: Kyllä

VIRTA-lähetysvuosi: 2022

JUFO-taso: 3