Energies and hyperfine splittings of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mn>7</mml:mn><mml:mi>D</mml:mi></mml:math>levels of atomic francium

Grossman, Joshua M.; Fliller, R.; Mehlstäubler, T. E.; Orozco, L. A.; Pearson, M. R.; Sprouse, Gene D.; Zhao, Wenyu

doi:10.1103/physreva.62.052507

Cited by 33 publications

(32 citation statements)

References 32 publications

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“…To draw meaningful conclusions and to be consistent in the findings from comparisons between the theoretical and experimental hyperfine structure constants of different states, it is necessary to consider the results for as many as states as possible for both the isotopes. The second, but the essential reason behind considering the above two isotopes is that experimental results of hyperfine structure constants for only a few selective low-lying states of 210 Fr [12][13][14][15] and some other excited states of 212 Fr are available [16].…”

Section: Introductionmentioning

confidence: 99%

Correlation trends in the hyperfine structures ofFr210,212

et al. 2015

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We demonstrate the importance of electron correlation effects in the hyperfine structure constants of many low-lying states in 210 Fr and 212 Fr. This is achieved by calculating the magnetic dipole and electric quadrupole hyperfine structure constants using the Dirac-Fock approximation, second order many-body perturbation theory and the coupled-cluster method in the singles and doubles approximation in the relativistic framework. By combining our recommended theoretical results with the corresponding experimental values, improved nuclear magnetic dipole and electric quadrupole moments of the above isotopes are determined. In the present work, it is observed that there are large discrepancies between the hyperfine structure constants of the 7D 5/2 state obtained from the experimental and theoretical studies whereas good agreements are found for the other D 5/2 states. Our estimated hyperfine constants for the 8P , 6D, 10S and 11S states could be very useful as benchmarks for the measurement of these quantities.

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Section: Introductionmentioning

confidence: 99%

Correlation trends in the hyperfine structures ofFr210,212

et al. 2015

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“…In this notes we show that at Stony Brook our measurements [18,19,20,21] and the present atomic structure calculations of Fr [22,23,24,25] are consistent within their claimed accuracy of 1%. This is paving the way towards a PNC measurement in Fr that will give information about the weak force, in particular about the anapole moment.…”

Section: Introductionmentioning

confidence: 56%

“…These states had not been located before, and we have used very similar techniques as with the S states for both for the estimation of their energy: Quantum defect fits; and for their observation: Double optical resonance spectroscopy. We found the [20] We have also measured the lifetime of the 7D 3/2 and 7D 5/2 levels of Fr. We have used a time-correlated single-photon counting technique on a sample of 210 Fr atoms confined and cooled in a magneto-optical trap.…”

Section: The 7d States Of Frmentioning

confidence: 95%

Spectroscopy with Trapped Francium

Orozco

2002

Trapped Particles and Fundamental Physics

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“…The natural linewidth from the lifetime is 11.4 MHz, whereas the data has a linewidth of 24 MHz which shows power broadening. We model the scan signal by solving the steady state optical Bloch equations 24 and obtain an spectrum consistent with the data (Fig. 13).…”

Section: Analysis and Resultsmentioning

confidence: 99%

Lifetime and hyperfine splitting measurements on the 7s and 6p levels in rubidium

et al. 2004

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We present lifetime measurements of the 7S 1/2 level and the 6p manifold of Rb. We use a time-correlated single-photon counting technique on a sample of 85 Rb atoms confined and cooled in a magneto-optical trap. The upper state of the 5P 1/2 repumping transition serves as the resonant intermediate level for two-photon excitation of the 7s level. A probe laser provides the second step of the excitation, and we detect the decay of the atomic fluorescence to the 5P 3/2 level at 741 nm. The decay process feeds the 6p manifold which decays to the 5s ground state emitting uv photons. We measure lifetimes of 88.07 ± 0.40 ns and 120.7 ± 1.2 ns for the 7S 1/2 level and 6p manifold, respectively; while the hyperfine splitting of the 7S 1/2 level is 282.6 ± 1.6 MHz.The agreement with theoretical calculations confirms the understanding of the wavefunctions involved, and provides confidence on the possibility of extracting weak interaction constants from a Parity Non-Conservation measurement.

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Energies and hyperfine splittings of the7Dlevels of atomic francium

Cited by 33 publications

References 32 publications

Correlation trends in the hyperfine structures ofFr210,212

Correlation trends in the hyperfine structures ofFr210,212

Spectroscopy with Trapped Francium

Lifetime and hyperfine splitting measurements on the 7s and 6p levels in rubidium

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