2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/52058We investigate a decay of a bulk tachyon with a Kaluza-Klein momentum in bosonic and Type 0 string theories compactified on S^1. Potential for the tachyon has a (local) minimum. A decay of the tachyon would lead the original theory to a strongly coupled theory. An endpoint of the decay would exist if the strong coupling limit exists and it is a stable theory.14 pages, references addedHigh Energy Physics - Theorytext