Laser Spectroscopy of Muonic Atoms and Ions
Abstract
Laser spectroscopy of the Lamb shift (2S-2P energy difference) in light muonic atoms or ions, in which one negative muon is bound to a nucleus, has been performed. The measurements yield significantly improved values of the root-mean-square charge radii of the nuclei, owing to the large muon mass, which results in a vastly increased muon wave function overlap with the nucleus. The values of the proton and deuteron radii are 10 and 3 times more accurate than the respective CODATA values, but 7 standard deviations smaller. Data on muonic helium-3 and -4 ions is being analyzed and will give new insights. In future, the (magnetic) Zemach radii of the proton and the helium-3 nuclei will be determined from laser spectroscopy of the 1S hyperfine splittings, and the Lamb shifts of muonic Li, Be and B can be used to improve the respective charge radii.
Cite
@article{arxiv.1609.03440,
title = {Laser Spectroscopy of Muonic Atoms and Ions},
author = {Randolf Pohl and François Nez and Luis M. P. Fernandes and Marwan Abdou Ahmed and Fernando D. Amaro and Pedro Amaro and François Biraben and João M. R. Cardoso and Daniel S. Covita and Andreas Dax and Satish Dhawan and Marc Diepold and Beatrice Franke and Sandrine Galtier and Adolf Giesen and Andrea L. Gouvea and Johannes Götzfried and Thomas Graf and Theodor W. Hänsch and Malte Hildebrandt and Paul Indelicato and Lucile Julien and Klaus Kirch and Andreas Knecht and Paul Knowles and Franz Kottmann and Julian J. Krauth and Eric-Olivier Le Bigot and Yi-Wei Liu and José A. M. Lopes and Livia Ludhova and Jorge Machado and Cristina M. B. Monteiro and Françoise Mulhauser and Tobias Nebel and Paul Rabinowitz and Joaquim M. F. dos Santos and José Paulo Santos and Lukas A. Schaller and Karsten Schuhmann and Catherine Schwob and Csilla I. Szabo and David Taqqu and João F. C. A. Veloso and Andreas Voss and Birgit Weichelt and Aldo Antognini},
journal= {arXiv preprint arXiv:1609.03440},
year = {2016}
}
Comments
Contribution to LEAP 2016 in Kanazawa, Japan