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Probing new bosons and nuclear structure with ytterbium isotope shifts

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arxiv 2403.07792 v2 pith:YUIIDKEG submitted 2024-03-12 physics.atom-ph hep-phnucl-exnucl-th

classification physics.atom-phhep-phnucl-exnucl-th
keywords nuclearisotopemeasurementsprecisionstructuretimesab-initioadditionally
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

In this Letter, we present mass-ratio measurements on highly charged Yb$^{42+}$ ions with a precision of $4\times 10^{-12}$ and isotope-shift measurements on Yb$^{+}$ on the $^{2}$S$_{1/2}$ $\to$ $^{2}$D$_{5/2}$ and $^{2}$S$_{1/2}$ $\to$ $^{2}$F$_{7/2}$ transitions with a precision of $4\times 10^{-9}$ for the isotopes $^{168,170,172,174,176}$Yb. 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$/c^2$ to MeV$/c^2$ range coupling to electrons and neutrons.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Long-lived metastable states in the 4f$^{13}$5d6s configuration of Yb$^+$

    physics.atom-ph 2026-03 conditional novelty 7.0 of 10

    First measurements of second-scale metastable lifetimes in the 4f13 5d6s configuration of Yb+: 0.92(8) s, 9.8(+2.9,-2.0) s, plus evidence for >30 s.

  2. Towards a Global Search for New Physics with Isotope Shifts

    physics.atom-ph 2025-06 conditional novelty 7.0 of 10

    kifit, a new fit framework, combines isotope shift data from multiple elements into global constraints on new boson couplings to electrons and neutrons.

  3. Constraining Hamiltonians from chiral effective field theory with neutron-star data

    nucl-th 2026-01 conditional novelty 6.0 of 10

    Neutron-star data, run through fast emulators, directly constrain the six two-nucleon low-energy constants of an N2LO chiral Hamiltonian, with future detectors able to strongly pin down the 3P1 channel.

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