  The anomaly detected by AMS-02 and PAMELA in the cosmic-ray positron flux
when interpreted as arising from dark matter annihilation suggests that dark
matter may interact differently with hadrons and leptons so as to remain
compatible with cosmic-ray antiproton data. Such a scenario is readily
accommodated in models with extra spatial dimensions. We study indirect
detection of Kaluza-Klein (KK) dark matter in Universal Extra Dimensions with
brane-localized terms and fermion bulk masses: Next-to-Minimal Universal Extra
Dimensions. So that an excess of antiprotons is not produced in explaining the
positron anomaly, it is necessary that the KK bulk masses in the lepton and
hadron sectors be distinct. Even so, we find that cosmic-ray data disfavor a
heavy KK photon dark matter scenario. Also, we find these scenarios with
flavor-universal bulk masses to be in conflict with dijet and dilepton searches
at the LHC.
