# Evidence of Two-Source King Plot Nonlinearity in Spectroscopic Search for New Boson.

@article{Hur2022EvidenceOT, title={Evidence of Two-Source King Plot Nonlinearity in Spectroscopic Search for New Boson.}, author={Joonseok Hur and Diana P. L. Aude Craik and Ian Counts and Eugene A. Knyazev and Luke Caldwell and Calvin Leung and Swadha Pandey and Julian C. Berengut and A. J. Geddes and Witold Nazarewicz and Paul-Gerhard Reinhard and Akio Kawasaki and Honggi Jeon and Wonho Jhe and Vladan Vuleti'c}, journal={Physical review letters}, year={2022}, volume={128 16}, pages={ 163201 } }

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 isotope shifts on the highly forbidden ^{2}S_{1/2}→^{2}F_{7/2} octupole transition of trapped ^{168,170,172,174,176}Yb ions. When combined with previous measurements in Yb^{+} and very recent measurements in Yb, the data reveal a King plot nonlinearity of up to 240σ. The trends exhibited by experimental data are explained…

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## References

SHOWING 1-10 OF 88 REFERENCES

### Precision Determination of Isotope Shifts in Ytterbium and Implications for New Physics.

- PhysicsPhysical review letters
- 2022

We report measurements of isotope shifts for the five spinless Yb isotopes on the 6s^{2} ^{1}S_{0}→5d6s ^{1}D_{2} transition using Doppler-free two-photon spectroscopy. We combine these data with…

### Evidence for Nonlinear Isotope Shift in Yb^{+} Search for New Boson.

- PhysicsPhysical review letters
- 2020

The quadratic field shift is identified as a possible nuclear contributor to the non linearity at the observed scale, and how the nonlinearity pattern can be used in future, more accurate measurements to separate a new-boson signal from nuclear effects is shown.

### Generalized King linearity and new physics searches with isotope shifts

- Physics
- 2020

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…

### Probing new intra-atomic force with isotope shifts

- PhysicsProceedings of The 39th International Conference on High Energy Physics — PoS(ICHEP2018)
- 2019

In the development of atomic clocks, some atomic transition frequencies are measured with remarkable precision. These measured spectra may include the effects of a new force mediated by a weakly…

### Relativistic effects in the search for new intra-atomic force with isotope shifts

- Physics
- 2019

Isotope shift of atomic spectra is considered as a probe of new interaction between electrons and neutrons in atoms. We employ the method of seeking a breakdown of King's linearity in the isotope…

### Probing New Long-Range Interactions by Isotope Shift Spectroscopy.

- PhysicsPhysical review letters
- 2018

We explore a method to probe new long- and intermediate-range interactions using precision atomic isotope shift spectroscopy. We develop a formalism to interpret linear King plots as bounds on new…

### Isotope shift, nonlinearity of King plots, and the search for new particles

- Physics
- 2018

We derive a mean-field relativistic formula for the isotope shift of an electronic energy level for arbitrary angular momentum; we then use it to predict the spectra of superheavy metastable…

### Nonlinearities of King's plot and their dependence on nuclear radii

- ArtPhysical Review A
- 2021

Investigations of isotope shifts of atomic spectral lines provide insights into nuclear properties. Deviations from the linear dependence of the isotope shifts of two atomic transitions on nuclear…

### Precision Measurement of Atomic Isotope Shifts Using a Two-Isotope Entangled State.

- PhysicsPhysical review letters
- 2019

This method is relatively easy to implement and is indifferent to element or isotope, paving the way for future tabletop searches for new physics, posing interesting prospects for testing quantum many-body calculations, and for the study of nuclear structure.

### Nuclear deformation as a source of the nonlinearity of the King plot in the Yb+ ion

- Physics
- 2021

We perform atomic relativistic many-body calculations of the field isotope shifts and calculations of corresponding nuclear parameters for all stable even-even isotopes of the ${\mathrm{Yb}}^{+}$…