Robustness of the analysis of Doppler-shift attenuation lifetime measurements according to the coincidence differential decay curve method with respect to class of uncertainties in the stopping powers

It is shown that the Differential decay curve method applied to analyze coincidence Doppler-shift attenuation lifetime measurements with a gate on the shifted component of a directly feeding feeding transition is characterized by stable results within scaling variations of the stopping powers of up to 15% at least. This is due to cancellation in the formula used for the lifetime determination while when using the traditional data analysis methods the imprecision in the stopping powers cannot be surrounded.