# Does the lifetime of an unstable system depend on the measuring apparatus?

@article{Degasperis1974DoesTL, title={Does the lifetime of an unstable system depend on the measuring apparatus?}, author={Antonio Degasperis and Luciano Fonda and Giancarlo Ghirardi}, journal={Il Nuovo Cimento A (1965-1970)}, year={1974}, volume={21}, pages={471-484} }

SummaryWithin the description of the experimental determination of the decay law recently proposed we investigate the possibility that the experimentally determined lifetime τ be different from the theoretical lifetime 1/γ for undisturbed evolution of the unstable quantum system. It is shown that in some specific examples the deviation of τ from 1/γ is competitive with the accuracy of the experiment. It is made plausible that such a difference, together with a variation of τ with the different…

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