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Progress on the proton-radius puzzle

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Nature 575, 61-62 (2019)



  1. Rutherford, E. Phil. Mag. Ser. 6 37, 581–587 (1919).

    Article  Google Scholar 

  2. Pohl, R. et al. Nature 466, 213–216 (2010).

    Article  PubMed  Google Scholar 

  3. Bernauer, J. C. & Pohl, R. Sci. Am. 310(2), 32–39 (2014).

    Article  PubMed  Google Scholar 

  4. Bezginov, N. et al. Science 365, 1007–1012 (2019).

    Article  PubMed  Google Scholar 

  5. Xiong, W. et al. Nature 575, 147–150 (2019).

    Article  Google Scholar 

  6. Pohl, R., Gilman, R., Miller, G. A. & Pachucki, K. Annu. Rev. Nucl. Part. Sci. 63, 175–204 (2013).

    Article  Google Scholar 

  7. Antognini, A. et al. Science 339, 417–420 (2013).

    Article  PubMed  Google Scholar 

  8. Vutha, A. C. & Hessels, E. A. Phys. Rev. A 92, 052504 (2015).

    Article  Google Scholar 

  9. Fleurbaey, H. et al. Phys. Rev. Lett. 120, 183001 (2018).

    Article  PubMed  Google Scholar 

  10. Bernauer, J. C. et al. Phys. Rev. Lett. 105, 242001 (2010).

    Article  PubMed  Google Scholar 

  11. Mohr, P. J., Newell, D. B. & Taylor, B. N. Rev. Mod. Phys. 88, 035009 (2016).

    Article  Google Scholar 

  12. Gilman, R. et al. Preprint at (2017).

  13. Beyer, A. et al. Science 358, 79–85 (2017).

    Article  PubMed  Google Scholar 

Download references


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