Pinning down electron correlations in RaF via spectroscopy of excited states
| Autor: | Athanasakis-Kaklamanakis, M., Wilkins, S. G., Skripnikov, L. V., Koszorus, A., Breier, A. A., Au, M., Belosevic, I., Berger, R., Bissell, M. L., Borschevsky, A., Brinson, A., Chrysalidis, K., Cocolios, T. E., de Groote, R. P., Dorne, A., Fajardo-Zambrano, C. M., Field, R. W., Flanagan, K. T., Franchoo, S., Ruiz, R. F. Garcia, Gaul, K., Geldhof, S., Giesen, T. F., Hanstorp, D., Heinke, R., Isaev, T. A., Kyuberis, A. A., Kujanpaa, S., Lalanne, L., Neyens, G., Nichols, M., Pasteka, L. F., Perrett, H. A., Reilly, J. R., Rothe, S., Udrescu, S. -M., Borne, B. van den, Wang, Q., Wessolek, J., Yang, X. F., Zuelch, C. |
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| Rok vydání: | 2023 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | We report the spectroscopy of 11 electronic states in the radioactive molecule radium monofluoride (RaF). The observed excitation energies are compared with state-of-the-art relativistic Fock-space coupled cluster (FS-RCC) calculations, which achieve an agreement of >99.71% (within ~8 meV) for all states. High-order electron correlation and quantum electrodynamics corrections are found to be important at all energies. Establishing the accuracy of calculations is an important step towards high-precision studies of these molecules, which are proposed for sensitive searches of physics beyond the Standard Model. Comment: Submitted for publication |
| Databáze: | arXiv |
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