This continues my previous multiverse-related questions.
There are some particles that could be useful to the scientific industry if they did not decay so quickly, such as antimatter-matter composites, some unstable isotopes and the like. In most cases, they decay as fast as they are created in our world.
However, I wonder if in a parallel universe, if the strong force interactions were different than they were in our world, would it be likely that such isomers and composites that were initially easily decayed in our world could be more stable in that world, or even metastable? Would it have to be stronger or weaker than it is? (Though may be more of the latter)
More importantly, assuming we are advanced enough to even traverse to parallel universes, could we successfully take these isomers and composites back to our world safely without any issues happening?
PS: Also, note that I got the idea of metastable alternate-universe materials that is caused by a difference in strong force from Asimov's the Gods Themselves. Namely his Plutonium-186. There are other types of odd isomers in sci fi that could be useful without the decaying problem, such as Hydrogen-4 (Quantium) and Caesium-138. Maybe even Naquadah in the Island of Stability.