1995/01/01 by U. Berzinsh, Uldis Berzinsh, Morgan Gustafsson +9 · 1 citation
Chemistry · Physics and Astronomy · #Advanced Chemical Physics Studies #Atomic and Molecular Physics #Spectroscopy and Laser Applications #physics.atom-ph
paper · pdf · doi:10.1103/physreva.51.231
published as Phys. Rev. A, 51(1), 231-238, January 1995 · 16 pages, 6 figures, LaTeX2e, amsmath
openalex publication_date 1995/01/01 · arxiv created 1998/04/23 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The specific mass shift in the electron affinity between 35Cl and 37Cl has been determined by tunable-laser photodetachment spectroscopy to be -0.51(14) GHz. The isotope shift was observed as a difference in the onset of the photodetachment process for the two isotopes. In addition, the electron affinity of Cl was found to be 29 138.59(22) cm^\mathrm\ensuremath-1, giving a factor of 2 improvement in the accuracy over earlier measurements. Many-body calculations including lowest-order correlation effects demonstrate the sensitivity of the specific mass shift and show that the inclusion of higher-order correlation effects would be necessary for a quantitative description.