Probing New Bosons and Nuclear Structure with Ytterbium Isotope Shifts

Menno Door*, Chih Han Yeh*, Matthias Heinz, Fiona Kirk, Chunhai Lyu, Takayuki Miyagi, Julian C. Berengut, Jacek Bieroń, Klaus Blaum, Laura S. Dreissen, Sergey Eliseev, Pavel Filianin, Melina Filzinger, Elina Fuchs, Henning A. Fürst, Gediminas Gaigalas, Zoltán Harman, Jost Herkenhoff, Nils Huntemann, Christoph H. KeitelKathrin Kromer, Daniel Lange, Alexander Rischka, Christoph Schweiger, Achim Schwenk, Noritaka Shimizu, Tanja E. Mehlstäubler

*Corresponding author for this work

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

In this Letter, we present mass-ratio measurements on highly charged Yb42+ ions with a precision of 4×10-12 and isotope-shift measurements on Yb+ on the S21/2→D5/22 and S21/2→F7/22 transitions with a precision of 4×10-9 for the isotopes Yb168,170,172,174,176. We present a new method that allows us to extract higher-order changes in the nuclear charge distribution along the Yb isotope chain, benchmarking ab initio nuclear structure calculations. Additionally, we perform a King plot analysis to set bounds on a fifth force in the keV/c2 to MeV/c2 range coupling to electrons and neutrons.

Original languageEnglish
Article number063002
Pages (from-to)1-7
Number of pages7
JournalPhysical review letters
Volume134
Issue number6
Early online date11 Feb 2025
DOIs
Publication statusPublished - 14 Feb 2025

Bibliographical note

Publisher Copyright:
© 2025 authors. Published by the American Physical Society.

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