  Within the Minimal Supersymmetric Standard Model (MSSM), LHC bounds suggest
that scalar superpartner masses are far above the electroweak scale. Given a
high superpartner mass, nonthermal dark matter is a viable alternative to WIMP
dark matter generated via freezeout. In the presence of moduli fields
nonthermal dark matter production is associated with a long matter dominated
phase, modifying the spectral index and primordial tensor amplitude relative to
those in a thermalized primordial universe. Nonthermal dark matter can have a
higher self-interaction cross-section than its thermal counterpart, enhancing
astrophysical bounds on its annihilation signals. We constrain the
contributions to the neutralino mass from the bino, wino and higgsino using
existing astrophysical bounds and direct detection experiments for models with
nonthermal neutralino dark matter. Using these constraints we quantify the
expected change to inflationary observables resulting from the nonthermal
phase.
