Note that these epos are fermions; so, no (little) mass is involved. I guess we are speaking of energy of spin momentum.
And also note that these particles have half integer spin; so, their rotation cycle is 720 degrees. Hence the requirement for more than 1/2 of the Planck time cycle. It becomes an asymmetrical recombination with a net energy release. Or not. Bizzaro world, n'est-ce pas? T
