High Precision Measurements of the Ground State Hyperfine Structure Interval of Muonium and of the Muon Magnetic Moment
- Department of Physics, Yale University, New Haven, Connecticut 06520-8121 (United States)
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
- Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
- ETH Zuerich, Institute for Particle Physics, CH-5232 Villigen-PSI (Switzerland)
- Universitaet Heidelberg, Physikalisches Institut, D-69120 Heidelberg (Germany)
- Brookhaven National Laboratory, Upton, New York 11973 (United States)
High precision measurements of two Zeeman hyperfine transitions in the ground state of muonium in a strong magnetic field have been made at LAMPF using microwave magnetic resonance spectroscopy and a resonance line narrowing technique. These determine the most precise values of the ground state hyperfine structure interval of muonium {Delta}{nu}=4thinsp463thinsp302thinsp 765(53) Hz (12 ppb) , and of the ratio of magnetic moments {mu}{sub {mu}}/{mu}{sub p}=3.183thinsp 345thinsp13(39) (120 ppb) , representing a factor of 3 improvement. Values of the mass ratio m{sub {mu}}/m{sub e} and the fine structure constant {alpha} are derived from these results. {copyright} {ital 1999} {ital The American Physical Society }
- OSTI ID:
- 295569
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 4 Vol. 82; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
Similar Records
A precision experiment on the Zeeman Energy levels of ground state muonium
Higher precision measurement of the hfs interval of muonium and of the muon magnetic moment