The GSI anomaly

Abstract

Recently, an experiment at GSI Darmstadt has observed oscillating decay rates of heavy ions. Several controversial attempts have been made to explain this effect in terms of neutrino mixing. We briefly describe the experimental results, give an overview of the literature, and show that the effect cannot be due to neutrino mixing. If the effect survives, it could, however, be explained by hypothetical internal excitations of the mother ions (~ 10^(-15) eV).

Contribution to the Proceedings of Neutrino 2008, based on a talk by M. Lindner and on a poster by the authors

References in corpus (3)

• Oscillations of neutrinos and mesons in quantum field theory
• 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

Cited by in corpus (14)

• Disentangling Neutrino Oscillations
• keV Neutrino Model Building
• High-resolution measurement of the time-modulated orbital electron capture and of the ${\beta }^{+}$ decay of hydrogen-like ${}^{142}$Pm${}^{60+}$ ions
• On the time modulation of the K-shell electron capture decay rates of H-like heavy ions at GSI experiments
• 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 magnetic moment effects in electron-capture measurements at GSI
• Neutrino effects in two-body electron-capture measurements at GSI
• GSI anomaly and spin-rotation coupling
• The GSI Time Anomaly: Facts and Fiction
• Is the GSI anomaly due to neutrino oscillations? - A real time perspective -
• Neutrino signals in electron-capture storage-ring experiments
• Neutrino Mass Differences and Nonunitarity of Neutrino Mixing Matrix from Interfering Recoil Ions
• Decay Oscillations in Electron Capture and the Neutrino Mass Difference