  In Lorentz-violating supergravity, sfermions have spin 1/2 and other unusual
properties. If the dark matter consists of such particles, there is a natural
explanation for the apparent absence of cusps and other small scale structure:
The Lorentz-violating dark matter is cold because of the large particle mass,
but still moves at nearly the speed of light. Although the R-parity of a
sfermion, gaugino, or gravitino is +1 in the present theory, these particles
have an "S-parity'' which implies that the LSP is stable and that they are
produced in pairs. On the other hand, they can be clearly distinguished from
the superpartners of standard supersymmetry by their highly unconventional
properties.
