Dark Matter may be Anti-Baryonic matter

[Autumnlicious]

This model supposes that dark matter is merely antibaryonic matter at a state that does not interact with normal matter except through direct collision in the nucleus, causing a nuclei decay of slightly different energies. The big implication of this paper is that it is testable through existing experiments.

The funny thing is that this model is consistent across regular post-big bang expansion, string theory and super symmetry when it comes to meeting shared requirements of each. Their solution to CP violation is interesting as well.

We present a novel mechanism for generating both the baryon and dark matter densities of the Universe. A new Dirac fermion X carrying a conserved baryon number charge couples to the Standard Model quarks as well as a GeV-scale hidden sector. CP-violating decays of X, produced non-thermally in low-temperature reheating, sequester antibaryon number in the hidden sector, thereby leaving a baryon excess in the visible sector. The antibaryonic hidden states are stable dark matter. A spectacular signature of this mechanism is the baryon-destroying inelastic scattering of dark matter that can annihilate baryons at appreciable rates relevant for nucleon decay searches.

REF: http://arxiv.org/abs/1008.2399

[theVOID]

That seems to cause more CP violation as Dark Matter is far more prominent than Baryons, 0.23 v 0.045, or any "normal" matter at 0.07, Unless they are suggesting that only "stable" dark matter is anti-baryonic which raises more questions still... In any case it would be the only known example where the anti-particle is more prominent than the norm, already seems strange.

What do they expect to see in an anti-baryon decay? Equal measure anti-Quark and anti-Lepton? And would this give clues as to why Baryons interact more strongly than normal Ferimons?