Navigation überspringen
Universitätsbibliothek Heidelberg
Status: Bibliographieeintrag

Verfügbarkeit
Standort: ---
Exemplare: ---
heiBIB
 Online-Ressource
Verfasst von:Dickopf, Stefan [VerfasserIn]   i
 Sikora, Bastian [VerfasserIn]   i
 Kaiser, Annabelle [VerfasserIn]   i
 Müller, Marius [VerfasserIn]   i
 Ulmer, Stefan [VerfasserIn]   i
 Yerokhin, Vladimir [VerfasserIn]   i
 Harman, Zoltán [VerfasserIn]   i
 Keitel, Christoph H. [VerfasserIn]   i
 Mooser, Andreas [VerfasserIn]   i
 Blaum, Klaus [VerfasserIn]   i
Titel:Precision spectroscopy on 9Be overcomes limitations from nuclear structure
Verf.angabe:Stefan Dickopf, Bastian Sikora, Annabelle Kaiser, Marius Müller, Stefan Ulmer, Vladimir A. Yerokhin, Zoltán Harman, Christoph H. Keitel, Andreas Mooser, Klaus Blaum
E-Jahr:2024
Jahr:14 August 2024
Umfang:5 S.
Fussnoten:Im Titel ist die Zahl 9 hochgestellt ; Gesehen am 28.01.2025
Titel Quelle:Enthalten in: Nature
Ort Quelle:London [u.a.] : Nature Publ. Group, 1869
Jahr Quelle:2024
Band/Heft Quelle:632(2024), 8026, Seite 757-761
ISSN Quelle:1476-4687
Abstract:Many powerful tests of the standard model of particle physics and searches for new physics with precision atomic spectroscopy are hindered by our lack of knowledge of nuclear properties. Ideally, these properties may be derived from precise measurements of the most sensitive and theoretically best-understood observables, often found in hydrogen-like systems. Although these measurements are abundant for the electric properties of nuclei, they are scarce for the magnetic properties, and precise experimental results are limited to the lightest of nuclei1-4. Here we focus on 9Be, which offers the unique possibility to use comparisons between different charge states available for high-precision spectroscopy in Penning traps to test theoretical calculations typically obscured by nuclear structure. In particular, we perform high-precision spectroscopy of the 1s hyperfine and Zeeman structure in hydrogen-like 9Be3+. We determine the effective Zemach radius with an uncertainty of 500 ppm, and the bare nuclear magnetic moment with an uncertainty of 0.6 parts per billion— uncertainties unmatched beyond hydrogen. Moreover, we compare our measurements with the measurements conducted on the three-electron charge state 9Be+ (ref. 5), which enables testing the calculation of multi-electron diamagnetic shielding effects of the nuclear magnetic moment at the parts per billion level. Furthermore, we test the quantum electrodynamics methods used for the calculation of the hyperfine splitting. Our results serve as a crucial benchmark for transferring high-precision results of nuclear magnetic properties across different electronic configurations.
DOI:doi:10.1038/s41586-024-07795-1
URL:Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.

Volltext: https://doi.org/10.1038/s41586-024-07795-1
 Volltext: https://www.nature.com/articles/s41586-024-07795-1
 DOI: https://doi.org/10.1038/s41586-024-07795-1
Datenträger:Online-Ressource
Sprache:eng
Sach-SW:Atomic and molecular physics
 Quantum physics
K10plus-PPN:1915743044
Verknüpfungen:→ Zeitung

Permanenter Link auf diesen Titel (bookmarkfähig):  https://katalog.ub.uni-heidelberg.de/titel/69294916   QR-Code
zum Seitenanfang