An interferometric method is used to improve the accuracy of the 7S-7P transition frequencies of three francium isotopes by I order of magnitude. The deduced isotope shifts for Fr209-211 confirm the ISOLDE data. The frequency of the D-2 transition of Fr-212-the accepted reference for all Fr isotope shifts-is revised, and a significant difference with the ISOLDE value is found. Our results will be a benchmark for the accuracy of the theory of Fr energy levels, a necessary step to investigate fundamental symmetries. (C) 2009 Optical Society of America

Accurate measurements of transition frequencies and isotope shifts of laser-trapped francium

CALABRESE, Roberto;A. Khanbekyan;STANCARI, Giulio;TOMASSETTI, Luca;
2009

Abstract

An interferometric method is used to improve the accuracy of the 7S-7P transition frequencies of three francium isotopes by I order of magnitude. The deduced isotope shifts for Fr209-211 confirm the ISOLDE data. The frequency of the D-2 transition of Fr-212-the accepted reference for all Fr isotope shifts-is revised, and a significant difference with the ISOLDE value is found. Our results will be a benchmark for the accuracy of the theory of Fr energy levels, a necessary step to investigate fundamental symmetries. (C) 2009 Optical Society of America
Sanguinetti, S.; Calabrese, Roberto; Corradi, L.; Dainelli, A.; Khanbekyan, A.; Mariotti, E.; Mauro, C. d.; Minguzzi, P.; Moi, L.; Stancari, Giulio; Tomassetti, Luca; Veronesi, S.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/1377748
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