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The μCF Experiments at PSI – A Conclusive Review

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Abstract

During 25 years pioneering μCF experiments were performed at PSI. After initial study of the Wolfenstein–Gershtein effect in H/D, an intense research program on dμd fusion led to the early discovery of resonant dμd formation at low temperature and to the first direct observation of μd spin flip. With the Gatchina ionisation chamber absolute precisions of ∼1% on the determination of dμd formation and spin flip rates were recently obtained in good agreement with the theory.

In a very large effort the highly resonant dμt fusion cycle was investigated. Record cycle rates up to 2×108 s−1 and yields up to 124 fusions per muon were measured. By slope analysis and by direct observation, effective sticking ω s = (0.505 ± 0.029)% is the final PSI result. Clear experimental evidence of large epithermal resonances in D/T and H/D/T mixtures was found.

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Authors and Affiliations

  1. Laboratory for Particle Physics, Paul Scherrer Institute (PSI), CH-5232, Villigen, Switzerland

    C. Petitjean

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  1. C. Petitjean
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Petitjean, C. The μCF Experiments at PSI – A Conclusive Review. Hyperfine Interactions 138, 191–201 (2001). https://doi.org/10.1023/A:1020883708302

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