A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Precision measurement of the magnetic octupole moment in 45Sc as a test for state-of-the-art atomic- and nuclear-structure theory (2022)
de Groote, R.P., Moreno, J., Dobaczewsk, I. J., Koszorús, Á., Moore, I., Reponen, M., Sahoo, B.K., & Yuan, C. (2022). Precision measurement of the magnetic octupole moment in 45Sc as a test for state-of-the-art atomic- and nuclear-structure theory. Physics Letters B, 827, Article 136930. https://doi.org/10.1016/j.physletb.2022.136930
JYU-tekijät tai -toimittajat
Julkaisun tiedot
Julkaisun kaikki tekijät tai toimittajat: de Groote, R.P.; Moreno, J.; Dobaczewsk,i J.; Koszorús, Á.; Moore, I.; Reponen, M.; Sahoo, B.K.; Yuan, C.
Lehti tai sarja: Physics Letters B
ISSN: 0370-2693
eISSN: 1873-2445
Julkaisuvuosi: 2022
Volyymi: 827
Artikkelinumero: 136930
Kustantaja: Elsevier BV
Julkaisumaa: Alankomaat
Julkaisun kieli: englanti
DOI: https://doi.org/10.1016/j.physletb.2022.136930
Julkaisun avoin saatavuus: Avoimesti saatavilla
Julkaisukanavan avoin saatavuus: Kokonaan avoin julkaisukanava
Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/79645
Julkaisu on rinnakkaistallennettu: https://arxiv.org/abs/2005.00414
Tiivistelmä
2 D3/2 atomic states in 45Sc. High-precision atomic calculations of the hyperfine fields of these states
and second-order corrections are performed, and are used to extract C5/2 = −0.06(6) kHz and C3/2 =
+0.04(3) kHz from the data. These results are one order of magnitude more precise than the available
literature. From the combined analysis of both atomic states, we infer the nuclear magnetic octupole
moment Ω = −0.07(53)μN b, including experimental and atomic structure-related uncertainties. With a
single valence proton outside of a magic calcium core, scandium is ideally suited to test a variety of
nuclear models, and to investigate in-depth the many intriguing nuclear structure phenomena observed
within the neighbouring isotopes of calcium. We perform nuclear shell-model calculations of Ω, and
furthermore explore the use of Density Functional Theory for evaluating Ω. From this, mutually consistent
theoretical values of Ω are obtained, which are in agreement with the experimental value. This confirms
atomic structure calculations possess the accuracy and precision required for magnetic octupole moment
measurements, and shows that modern nuclear theory is capable of providing meaningful insight into
this largely unexplored observable.
YSO-asiasanat: ydinfysiikka; tiheysfunktionaaliteoria
Vapaat asiasanat: oktupooli, ydinrakenne
Liittyvät organisaatiot
Hankkeet, joissa julkaisu on tehty
- RIS And Purification Traps for Optimised spectRoscopy
- Moore, Iain
- Euroopan komissio
OKM-raportointi: Kyllä
Raportointivuosi: 2022
JUFO-taso: 2
