Improved Isotope-Shift-Based Bounds on Bosons beyond the Standard Model through Measurements of the 2D3/2 2D5/2 Interval in Ca+

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

  • Cyrille Solaro
  • ,
  • Steffen Meyer
  • Karin Fisher
  • ,
  • Julian C. Berengut, University of New South Wales
  • ,
  • Elina Fuchs, University of Chicago, Fermilab Center for Particle Astrophysics, Batavia, IL 60510, USA
  • ,
  • Michael Drewsen

We perform high-resolution spectroscopy of the 3d D23/2-3d D25/2 interval in all stable even isotopes of CaA+ (A=40, 42, 44, 46, and 48) with an accuracy of ∼20 Hz using direct frequency-comb Raman spectroscopy. Combining these data with isotope shift measurements of the 4s S21/2↔3d D25/2 transition, we carry out a King plot analysis with unprecedented sensitivity to coupling between electrons and neutrons by bosons beyond the standard model. Furthermore, we estimate the sensitivity to such bosons from equivalent spectroscopy in Ba+ and Yb+. Finally, the data yield isotope shifts of the 4s S21/2↔3d D23/2 transition at 10 parts per billion through combination with recent data of Knollmann, Patel, and Doret [Phys. Rev. A 100, 022514 (2019)PLRAAN2469-992610.1103/PhysRevA.100.022514].

OriginalsprogEngelsk
Artikelnummer123003
TidsskriftPhysical Review Letters
Vol/bind125
Nummer12
ISSN0031-9007
DOI
StatusUdgivet - sep. 2020

Se relationer på Aarhus Universitet Citationsformater

ID: 199125586