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Chrysalidis, K. Gaul, K. M. Lynch, K. T. Flanagan, L. F. Pa\\v{s}teka, L. Lalanne, L. Nies, L. V. Skripnikov, M. Athanasakis-Kaklamanakis, M. Au, M. L. Bissell, M. Nichols, O. Ahmad, P. Imgram, P. Lass\\`egues, Q. Wang, R. Berger, R. F. Garcia Ruiz, R. Heinke, R. P. de Groote, R. W. Field, S. Franchoo, S. Geldhof, S. G. Wilkins, S. Kujanp\\\"a\\\"a, S.-M. Udrescu, S. Rothe, S. W. Bai, T. A. Isaev, T. E. Cocolios, T. F. Giesen, W. C. Mei, X. F. Yang, Y. C. Liu","submitted_at":"2023-08-28T19:32:48Z","abstract_excerpt":"We report the spectroscopy of the 14 lowest excited electronic states in the radioactive molecule radium monofluoride (RaF). The observed excitation energies are compared with fully relativistic state-of-the-art Fock-space coupled cluster (FS-RCC) calculations, which achieve an agreement of >=99.64% (within ~12 meV) with experiment for all states. 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