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Lamb-shift measurement in hydrogenlike Sulfur

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Zeitschrift für Physik A Atoms and Nuclei

Abstract

The 2S 1/2-2P 1/2 Lamb-shift in hydrogenlike Sulfur was measured with a field quench technique. A high velocity beam of S15+-ions (v/c=0.086) prepared in the metastable 2S 1/2 state crosses a homogeneous magnetic field of about 1.8 Tesla. The strong electric field of 4·107 V/m in the rest frame of the ions mixes the longlived 2S 1/2-state (τ=7.18 nsec) with the short lived 2P 1/2-state (τ=2.4·10−5 ns). From the measured lifetime of the thus quenched 2S 1/2-state a Lamb-shift value of 25.14±0.24 THz is derived and compared with theoretical predictions.

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Author notes

  1. P. Kienle

    Present address: Gesellschaft für Schwerionenforschung mbH, D-6100, Darmstadt 11, Germany

Authors and Affiliations

  1. Physik Department, Technische Universität München, Garching, Germany

    V. Zacek, H. Bohn, H. Brum, T. Faestermann, F. v. Feilitzsch, G. Giorginis, P. Kienle & S. Schuhbeck

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  1. V. Zacek
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  2. H. Bohn
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  3. H. Brum
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  4. T. Faestermann
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  5. F. v. Feilitzsch
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  6. G. Giorginis
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  7. P. Kienle
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  8. S. Schuhbeck
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Additional information

We wish to acknowledge the skillful and valuable assistance in all technical and engineering matters by H. Falkner, H. Hagn, E. Kellner and W. Czech. We are grateful to H.-D. Betz for helpful discussions. Further we are indepted to the operating staff of the Munich Tandem Accelerator.

This work has been supported by the Bundesministerium für Forschung und Technologie.

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Zacek, V., Bohn, H., Brum, H. et al. Lamb-shift measurement in hydrogenlike Sulfur. Z Physik A 318, 7–11 (1984). https://doi.org/10.1007/BF02117208

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  • DOI: https://doi.org/10.1007/BF02117208

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