Recent experiments with atomic clocks and hydrogen gas samples have shown discrepancies between theory and experiment. There are serious disagreements with respect to four different parameters: two different frequency shift parameters and a line broadening cross section relating to the H maser, and a longitudinal relaxation rate observed in a hydrogen gas sample. We study the changes in the short-range singlet and triplet potentials that would be needed to eliminate the above discrepancies. We find that no such changes can remove all four discrepancies simultaneously. In addition, we investigate a possible role of spin-dipole interactions, which have been neglected in previous calculations.
|Number of pages||7|
|Journal||Physical Review A : Atomic, Molecular and Optical Physics|
|Publication status||Published - 1 Nov 1997|
- Optical cooling of atoms
- Mechanical effects of light on atoms molecules electrons and ions