Isotope-shift spectroscopy of the ${}^1{S}_0\to {}^3{P}_1$ and ${}^1{S}_0\to {}^3{P}_0$ transitions in strontium

Abstract

Isotope shift spectroscopy with narrow optical transitions provides a benchmark for atomic structure calculations and has also been proposed as a way to constrain theories predicting physics beyond the Standard Model. Here, we have measured frequency shifts of the ${}^1{S}_0\to {}^3{P}_1$ and ${}^1{S}_0\to {}^3{P}_0$ transitions between all stable isotopes of strontium relative to ${}^{88}$Sr. This includes the first reported measurements of the ${}^1{S}_0\to {}^3{P}_0$ isotope shift of ${}^{88}$Sr-${}^{86}$Sr and ${}^{88}$Sr-${}^{84}$Sr. Using the isotope shift measurements of the two transitions, a King plot analysis is performed. These results, combined with other recent isotope shift measurements in other atomic systems, will help refine atomic structure calculations and theoretical predictions for new physics.

arXiv comment9 pages, 4 figures, 3 tables

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Cited by in corpus (23)

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