Abstract

A measurement of the Lamb shift (2S–2P energy difference) in muonic hydrogen (µp, the exotic hydrogen atom made from one proton and one negative muon µ) has been on the physicists’ wish list for more than 40 years. Muonic hydrogen is a unique system to study the finite size (rms charge radius) rp of the proton. Due to its 200 times larger mass, the muon’s Bohr radius in µp is about 200 times smaller than the corresponding electron Bohr radius in regular hydrogen H. This enhances finite size effects by about 2003 in µp, compared to H. The finite size contribution to the Lamb shift in muonic hydrogen is as large as 2% of the total 2S Lamb shift (Fig. 1 a).

© 2011 IEEE

PDF Article
More Like This
Laser Spectroscopy of Muonic Atoms and Ions

Randolf Pohl and
LTu5G.2 Laser Science (LS) 2015

Precision measurement at the 1S Lamb shift in atomic hydrogen

R. G. BEAUSOLEIL, D. H. McINTYRE, C. J. FOOT, B. COUILLAUD, E. A. HILDUM, and THEODOR W. HANSCH
TUOO2 International Quantum Electronics Conference (IQEC) 1987

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription