Illuminating the proton radius conundrum: the μHe+ Lamb shiftThis paper was presented at the International Conference on Precision Physics of Simple Atomic Systems, held at École de Physique, les Houches, France, 30 May – 4 June, 2010.
Canadian Journal of Physics2011Vol. 89(1), pp. 47–57
Citations Over TimeTop 10% of 2011 papers
Aldo Antognini, F. Biraben, J. M. R. Cardoso, D. S. Covita, A. Dax, L. M. P. Fernandes, Andrea L. Gouvea, Thomas Graf, T. W. Hänsch, M. Hildebrandt, P. Indelicato, L. Julién, K. Kirch, F. Kottmann, Yiwei Liu, C. M. B. Monteiro, F. Mulhauser, Tobias Nebel, F. Nez, J.M.F. dos Santos, Karsten Schuhmann, D. Taqqu, J.F.C.A. Veloso, A. Voss, Randolf Pohl
Abstract
We plan to measure several 2S–2P transition frequencies in μ 4 He + and μ 3 He + by means of laser spectroscopy with an accuracy of 50 ppm. This will lead to a determination of the corresponding nuclear rms charge radii with a relative accuracy of 3 × 10 −4 , limited by the uncertainty of the nuclear polarization contribution. First, these measurements will help to solve the proton radius puzzle. Second, these very precise nuclear radii are benchmarks for ab initio few-nucleon theories and potentials. Finally when combined with an ongoing measurement of the 1S–2S transition in He + , these measurements will lead to an enhanced bound-state QED test of the 1S Lamb shift in He + .
Related Papers
- → A measurement of the atomic hydrogen Lamb shift and the proton charge radius(2019)329 cited
- → Self-consistent value of the electric radius of the proton from the Lamb shift in muonic hydrogen(2014)16 cited
- → The Lamb shift in muonic hydrogen and the proton radius puzzle(2014)7 cited
- → Some issues concerning the proton charge radius puzzle(2012)2 cited
- → Are protons nonidentical fermions?(2014)