Could the GSI Oscillations be Observed in a Standard Electron Capture Decay Experiment?

Abstract

The electron-capture decay of 180Re has been investigated to search for oscillations in the decay probability as reported from a recent measurement at GSI, Darmstadt. The production period was kept short compared to the reported oscillation period. No such oscillation was observed, indicating that the reported oscillations would not have been observable in a conventional experiment with radioactive atoms in a solid environment but must have to do with the unique conditions in the GSI experiment where hydrogen-like ions are moving independently in a storage ring and decaying directly by a true two-body decay to a long-lived (ground-) state. Our finding could restrict possible theoretical interpretations of the oscillations.

6 pages, 4 figures

References in corpus (3)

• Observation of Non-Exponential Orbital Electron Capture Decays of Hydrogen-Like ${}^{140}$Pr and ${}^{142}$Pm Ions
• Rates of Processes with Coherent Production of Different Particles and the GSI Time Anomaly
• Search for Oscillation of the Electron-Capture Decay Probability of ${}^{142}$Pm

Cited by in corpus (8)

• Heavy-Ion Storage Rings and Their Use in Precision Experiments with Highly Charged Ions
• New Test of Modulated Electron Capture Decay of Hydrogen-Like ${}^{142}$Pm Ions: Precision Measurement of Purely Exponential Decay
• Why a splitting in the final state cannot explain the GSI-Oscillations
• Neutrino effects in two-body electron-capture measurements at GSI
• Neutrino magnetic moment effects in electron-capture measurements at GSI
• Is the GSI anomaly due to neutrino oscillations? - A real time perspective -
• Neutrino signals in electron-capture storage-ring experiments
• Lifetime measurements of nuclei in few-electron ions