Comment on "Time modulation of the K-shell electron capture decay rates of H-like heavy ions at GSI experiments", arXiv:0908.0877

Abstract

According to GSI experiment Phys.Lett.B 664, 162 (2008), the rate of the daughter ion production by the K-shell electron capture (with neutrino emission) in H-like ions 142Pm, 140Pr and 152I is modulated with a period of 6 to 7 seconds. In PRL 103, 062502, 2009 by Ivanov and Kienle (also by Lipkin}) there is a claim that neutrino oscillations may explain this result. In arXiv:0811.2302 by Lambiase et al a different explanation is suggested which is based on the rotation of electron and nuclear spins. The aim of this Comment is to show why these explanations are not satisfactory and to discuss other possibilities.

Comment to Phys. Rev. Lett. 103, 062502 (2009), also to Lipkin arXiv articles and Lambiase et al arXiv:0811.2302

References in corpus (2)

• Observation of Non-Exponential Orbital Electron Capture Decays of Hydrogen-Like ${}^{140}$Pr and ${}^{142}$Pm Ions
• On the time modulation of the K-shell electron capture decay rates of H-like heavy ions at GSI experiments

Cited by in corpus (8)

• Non-exponential and oscillatory decays in quantum mechanics
• New Test of Modulated Electron Capture Decay of Hydrogen-Like ${}^{142}$Pm Ions: Precision Measurement of Purely Exponential Decay
• 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
• Reply on "Comments on 'Time modulation of the K-shell electron capture decay rates of H-like heavy ions at GSI experiments'"
• Neutrino signals in electron-capture storage-ring experiments
• Decay Oscillations in Electron Capture and the Neutrino Mass Difference