Comments on "Rates of processes with coherent production of different particles and the GSI time anomaly"by C. Giunti, Phys. Lett. B 665, 92 (2008), 0805.0431

TL;DR

This paper critiques Giunti's explanation of periodic time-dependence in electron capture decay rates, arguing that the phenomenon cannot be explained by coherent mixing of mother ion states, thus challenging prior interpretations.

Contribution

It provides a critical analysis of Giunti's proposed explanation, demonstrating that the observed effects cannot be attributed to coherent mixing of ion states.

Findings

Giunti's explanation is inconsistent with experimental data.

The observed periodicity cannot be explained by coherent mixing of mother ion states.

The critique clarifies the correct interpretation of the decay rate phenomena.

Abstract

We give comments on the recent paper by Giunti (Phys. Lett. B 665, 92 (2008), arXiv: 0805.0431 [hep-ph]) with a critique of our explanation of the experimentally observed periodic time-dependence of the interference term in the rate of the K-shell electron capture decay of the H-like ions 140Pr58+ and 142Pm60+ as a two-neutrino-flavour mixing. We show also that this phenomenon cannot be explained by a coherent mixing of two states of a mother ion as proposed by Giunti.