We explore a scenario of high scale supersymmetry where all supersymmetric particles except gauginos stay at a high energy scale $M_{ \rm SUSY}$ which is much larger than the reheating temperature $T_\text{ RH}$. The dark matter is dominated by bino component with mass around the electroweak scale and the observed relic abundance is mainly generated by the freeze-in process during the early universe. Considering the various constraints, we identify two available scenarios in which the supersymmetric sector at an energy scale below $T_\text{ RH}$ consists of: a) bino; b) bino and wino. Typically, for a bino mass around 0.1-1 TeV and a wino mass around 2 TeV, we find that $M_{ \rm SUSY}$ should be around $10^{ 12-14}$ GeV with $T_\text{ RH}$ around $10^{ 4-6}$ GeV.
Categories: hep-ph