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The measurement of pressure-dependent perturbed angular correlations of excited41K nuclei recoiling in argon gas

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Abstract

The time integrated perturbed angular distribution of the 1294 keV γ-transition, deexciting the recoiling41K excited nuclei, was measured as a function of argon gas pressure between 20 and 1000 torr. The pressure dependence presents a strong minimum around 100 torr. The magnetic hyperfine interaction responsible for the perturbation changes randomly due to inelastic charge exchange collisions, with a pressure-dependent and time-dependent correlation time τc.

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Authors and Affiliations

  1. Instituto de Física, Universidade de São Paulo, C.P. 20516, 01498, São Paulo, S.P., Brasil

    A. Lépine-Szily, O. Sala & W. A. Seale

  2. Departamento de Física, Pontifícia Universidade Católica, 22452, Rio de Janeiro, R.J., Brasil

    E. F. Da Silveira

Authors
  1. A. Lépine-Szily
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  2. O. Sala
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  3. W. A. Seale
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  4. E. F. Da Silveira
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Work supported by FINEP and CNPq.

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Lépine-Szily, A., Sala, O., Seale, W.A. et al. The measurement of pressure-dependent perturbed angular correlations of excited41K nuclei recoiling in argon gas. Hyperfine Interact 36, 263–273 (1987). https://doi.org/10.1007/BF02395635

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  • DOI: https://doi.org/10.1007/BF02395635

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