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Hyperfine Interactions

, Volume 138, Issue 1–4, pp 191–201 | Cite as

The μCF Experiments at PSI – A Conclusive Review

  • C. Petitjean
Article

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.

muon catalyzed fusion muonic molecule cycle rate muon sticking 

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Copyright information

© Kluwer Academic Publishers 2001

Authors and Affiliations

  • C. Petitjean
    • 1
  1. 1.Laboratory for Particle PhysicsPaul Scherrer Institute (PSI)VilligenSwitzerland

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