Publikationen (FIS)

Toward a global search for new physics with isotope shifts

Verfasst von

Elina Fuchs, Fiona Kirk, Agnese Mariotti, Jan Richter, Matteo Robbiati

Abstract

Isotope shifts have emerged as a sensitive probe of new bosons that couple to electrons and neutrons, and of nuclear structure. The recent Hz- or even sub-Hz-level isotope shift measurements across different elements call for a global assessment of all available data. In this work, we present the fit framework KIFIT that enables a combined analysis of isotope shift data from several elements, taking into account correlations. We provide a thorough comparison of analytical methods and the fit to analyze linear and nonlinear King plots and quantify their uncertainties. Finally, we provide recommendations for future measurements that could enhance the sensitivity to new physics and offer new insights into nuclear structure.

Details

Organisationseinheit(en)
Institut für Theoretische Physik
Externe Organisation(en)
Università degli Studi di Milano
Deutsches Elektronen-Synchrotron (DESY)
Leibniz Universitätsgesellschaft Hannover e.V.
Physikalisch-Technische Bundesanstalt (PTB)
European Organization For Nuclear Research (CERN)
Typ
Artikel
Journal
Physical Review A
Band
112
Seiten
522241-5222433
ISSN
2469-9926
Publikationsdatum
25.11.2025
Publikationsstatus
Veröffentlicht
Peer-reviewed
Ja
ASJC Scopus Sachgebiete
Atom- und Molekularphysik sowie Optik
Elektronische Version(en)
https://doi.org/10.1103/kzq9-x916 (Zugang: Offen )