The arxiv version of the paper says: the decay widths of the low-lying states increase, eventually melting into an unresolvable continuum as their lifetimes be

The arxiv version of the paper says: the decay widths of the low-lying states increase, eventually melting into an unresolvable continuum as their lifetimes become commensurate with typical reaction and single-particle timescales. Here, the very notion of the nuclear state becomes questionable as the timescales are too short to talk about the existence of a nucleus. Indeed as dis- cussed in Ref. [9], if a collection of nucleons survives for less than about 10−22 s, it should not be considered a nucleus. https://arxiv.org/abs/2309.15180 https://arxiv.org/abs/2309.15180