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Article Dans Une Revue Physical Review Research Année : 2020

Generalized King linearity and new physics searches with isotope shifts

Julian C. Berengut
  • Fonction : Auteur
Amy Geddes
  • Fonction : Auteur
Yotam Soreq
  • Fonction : Auteur

Résumé

Atomic spectral lines for different isotopes are shifted, revealing a change in the properties of the nucleus. For spinless nuclei such isotope shifts for two distinct transitions are expected to be linearly related, at least at leading order in a change of the nuclear mass and charge distribution. Looking for a breaking of linearity in so-called King plots was proposed as a novel method to search for physics beyond the standard model. In the light of the recent experimental progress in isotope shift spectroscopy, the sensitivity of these searches will become limited by the determination of the isotope masses and/or by nuclear effects which may induce nonlinearities at an observable level. In this work, we propose two possible generalizations of the traditional King plot that overcome these limitations by including additional isotope shift measurements, thus significantly extending the new physics reach of King plots in a purely spectroscopy-driven approach.

Dates et versions

hal-02739946 , version 1 (02-06-2020)

Identifiants

Citer

Julian C. Berengut, Cédric Delaunay, Amy Geddes, Yotam Soreq. Generalized King linearity and new physics searches with isotope shifts. Physical Review Research, 2020, 2, pp.043444. ⟨10.1103/PhysRevResearch.2.043444⟩. ⟨hal-02739946⟩
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