Thermal production of axino Dark Matter

Abstract

We reconsider thermal production of axinos in the early universe, adding: a) missed terms in the axino interaction; b) production via gluon decays kinematically allowed by thermal masses; c) a precise modeling of reheating. We find an axino abunance a few times larger than previous computations.

Comments: 6 pages, 2 figures. Final version, to appear on JHEP