3 papers
physics.atom-ph2022
Evidence of Two-Source King Plot Nonlinearity in Spectroscopic Search for New Boson
Joonseok Hur, Diana P. L. Aude Craik, Ian Counts +12
Optical precision spectroscopy of isotope shifts can be used to test for new forces beyond the Standard Model, and to determine basic properties of atomic nuclei. We measure isotop…
hep-ph2020
Generalized King linearity and new physics searches with isotope shifts
Julian C. Berengut, Cédric Delaunay, Amy Geddes +1
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…
physics.atom-ph2020
Evidence for Nonlinear Isotope Shift in Yb Search for New Boson
Ian Counts, Joonseok Hur, Diana P. L. Aude Craik +7
We measure isotope shifts for five Yb isotopes with zero nuclear spin on two narrow optical quadrupole transitions , ${}^2S_{1/2} \rightarr…