The Unification and Cogeneration of Dark Matter and Baryonic Matter
S.M. Barr
TL;DR
This paper explores a grand unified theory framework where dark matter and baryonic matter originate from the same multiplets, with certain symmetries stabilizing dark matter, exemplified through an SU(6) model.
Contribution
It proposes a unified model linking dark matter and baryonic matter within grand unified theories, highlighting the role of accidental global symmetries in stabilizing dark matter.
Findings
Dark matter candidates arise naturally in SU(6) GUT multiplets
Accidental U(1) symmetries can stabilize dark matter
Unified origin of dark matter and baryonic matter
Abstract
In grand unified theories with gauge groups larger than SU(5), the multiplets that contain the known quarks and leptons also contain fermions that are singlets under the Standard Model gauge group. Some of these could be the dark matter of the universe. Grand unified theories can also have accidental U(1) global symmetries (analogous to B-L in minimal SU(5)) that can stabilize dark matter. These ideas are illustrated in an SU(6) model.
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