Dark Matter and Baryogenesis from B mesons.

The pattern of CP violation in in the interference between B meson mixing and decay supports the CKM theory of CP violation in the Standard Model.

However the origin of the asymmetry between matter and anti-matter requires a source of CP or flavor-symmetry violation which is beyond the Standard Model, and is often used as a reason to study flavor physics and the physics of heavy quarks.

I will discuss some work on possible scenarios where b-quarks are produced out of equilibrium in the early universe and hadronize before they decay, and how CP violation in the oscillations of neutral B mesons and/or baryons, combined with a new source of violation of visible baryon number violation, could produce the matter-anti-matter asymmetry and possibly also the dark matter. This possibility is directly testable via exotic decays of b-quarks, and via the charge asymmetry in B-meson oscillations.