  We explore a novel class of multi-particle dark sectors, called Inelastic
Boosted Dark Matter (iBDM). These models are constructed by combining
properties of particles that scatter off matter by making transitions to
heavier states (Inelastic Dark Matter) with properties of particles that are
produced with a large Lorentz boost in annihilation processes in the galactic
halo (Boosted Dark Matter). This combination leads to new signals that can be
observed at ordinary direct detection experiments, but require unconventional
searches for energetic recoil electrons in coincidence with displaced
multi-track events. Related experimental strategies can also be used to probe
MeV-range boosted dark matter via their interactions with electrons inside the
target material.
