Can darkness be stringy?

Our universe seems to be just entering a phase of acceleration, perhaps indicative of an $ev-mev$ scale of physics. In this paper we suggest an alternative mechanism where the current acceleration is not due to new physics at $ev$ scale but because of interactions between the stringy dark components. In this model we also show how one may be able to explain the large hierarchy between the mass scale of current acceleration and the Planck mass, by relating it to another ``large'' parameter, the number of efoldings during primordial inflation.
hep group
Last modified: Sun Apr 3 21:21:15 EDT 2005