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Laser spectroscopy of exotic RI atoms in superfluid helium—OROCHI experiment

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Abstract

We have been developing a new laser spectroscopic technique “OROCHI,” which is based on the combination of superfluid helium as a stopper of radioactive isotope (RI) beam and in-situ laser spectroscopy of RI atoms, for determining spins and moments of exotic RIs. By using this unique technique, it is feasible to measure nuclear spins and electromagnetic moments of extremely low yield RI (estimated as less than 1 pps). Recently, we have demonstrated that nuclear spins and moments are obtained from Zeeman and hyperfine splittings of stable Rb isotopes measured using this OROCHI technique. Details of this laser spectroscopy method in He II “OROCHI” and the summary of our development are presented.

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Authors and Affiliations

  1. Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, 152-8551, Japan

    T. Furukawa

  2. RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan

    Y. Matsuo & T. Kobayashi

  3. Department of Applied Physics, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo, 184-8588, Japan

    A. Hatakeyama

  4. Department of Physics, Meiji University, 1-1-1 Higashi-Sanda, Tama, Kawasaki, Kanagawa, 214-8571, Japan

    K. Fujikake & Y. Matsuura

  5. Department of Physics, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan

    T. Shimoda

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  1. T. Furukawa
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  2. Y. Matsuo
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  3. A. Hatakeyama
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  4. K. Fujikake
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  5. Y. Matsuura
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  6. T. Kobayashi
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  7. T. Shimoda
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OROCHI Collaboration

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Correspondence to T. Furukawa.

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Furukawa, T., Matsuo, Y., Hatakeyama, A. et al. Laser spectroscopy of exotic RI atoms in superfluid helium—OROCHI experiment. Hyperfine Interact 196, 191–197 (2010). https://doi.org/10.1007/s10751-009-0139-x

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  • DOI: https://doi.org/10.1007/s10751-009-0139-x

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