DT fusion through the ${}^5$He $3/2+$ "Bretscher state" accounts for $\ge 25\%$ of our existence via nucleosynthesis and for the possibility of fusion energy

Mark B. Chadwick, Mark W. Paris, Brian M. Haines

In big bang nucleosynthesis (BBN), the deuterium-tritium (DT) fusion reaction, D(T,n)$\alpha$, enhanced by the 3/2${}^{+}$ resonance, is responsible for 99% of primordial ${}^4$He. This has b…