- Conference date: 4-9 June 2000
- Location: Florence, Itlay
Using a Penning trap single ion mass spectrometer, we have measured the atomic masses of 13 isotopes, many important for fundamental metrology and fundamental constants. The accuracy of the measurements, is typically two orders of magnitude better than previously accepted values. A wide variety of self consistency checks greatly reduces the possibility of unknown systematic errors.
As part of a program to determine the Molar Planck constant and the fine structure constant α, we measured the masses of and Our high accuracy atomic mass measurements can be combined with values of from atom interferometry measurements and accurate wavelength measurements for different atoms to give several independent determinations of and α. This route to α through the atomic mass of the proton the electron to proton mass ratio and the Rydberg constant is based on simple physics. It can potentially achieve the several ppb accuracy needed to test the QED determination of α extracted from measurements of the electron g factor.
- Atomic mass
- Mass measurement
- Atomic fine structure
- Fundamental constants
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Y. K. Semertzidis, M. Aoki, M. Auzinsh, V. Balakin, A. Bazhan, G. W. Bennett, R. M. Carey, P. Cushman, P. T. Debevec, A. Dudnikov, F. J. M. Farley, D. W. Hertzog, M. Iwasaki, K. Jungmann, D. Kawall, B. Khazin, I. B. Khriplovich, B. Kirk, Y. Kuno, D. M. Lazarus, L. B. Leipuner, V. Logashenko, K. R. Lynch, W. J. Marciano, R. McNabb, W. Meng, J. P. Miller, W. M. Morse, C. J. G. Onderwater, Y. F. Orlov, C. S. Ozben, R. Prigl, S. Rescia, B. L. Roberts, N. Shafer‐Ray, A. Silenko, E. J. Stephenson, K. Yoshimura and EDM Collaboration
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