A proposed solution for the lifetime puzzle of the 229mTh+ isomer

With the example of 229Th nucleus, which is most likely candidate for creation frequency standard a future, dynamics interplay and relationship various resonance conversion mechanisms analyzed. As result, solution proposed so-called thorium puzzle, consisted contradiction between experimental theoretical lifetimes Th+ ions. First, demonstrates dependence lifetime nuclear isomer on ambient conditions. Second, it leveling role fragmentation single-electron levels, makes amplification electron-nuclear interaction more likely. Both these trends lead to probable decrease towards agreement with experiment.