No Darmstadtium isotopes meet the criteria
The requested list returns no entries because no darmstadtium isotope satisfies the strict data requirements for this post. The criteria call for fully confirmed entries with clear mass number, measured half-life, identified decay modes, a documented production reaction, a discovery year, and primary references (ENSDF/NUBASE/GSI papers). No darmstadtium nuclide has all of those items accepted and complete under those strict standards.
Darmstadtium is a synthetic, very heavy element. Its isotopes are made one atom at a time in particle accelerators. They live for tiny times and appear in single decay chains. Production rates are extremely low and assignments can be tentative. Experiments sometimes give only a decay chain or a single event. That makes firm mass assignments, decay-mode catalogs, and full reference support hard to meet at the level required here.
Consider these close alternatives and related topics instead. Look up isotopes of neighboring superheavy elements such as hassium (Hs), meitnerium (Mt), roentgenium (Rg), and copernicium (Cn), where more complete decay tables exist. Review predicted darmstadtium isotopes from nuclear models, and read GSI and JINR papers on production methods (cold vs. hot fusion) and detection techniques. Explore ENSDF/NUBASE summaries for superheavy elements to find the most reliable, citable data available.
