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Baryon asymmetry and dark matter through the vector-like portal

Pérez, Pavel Fileviez and Wise, Mark B. (2013) Baryon asymmetry and dark matter through the vector-like portal. Journal of High Energy Physics, 2013 (5). Art. No. 094. ISSN 1126-6708. doi:10.1007/JHEP05(2013)094.

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A possible connection between the cosmological baryon asymmetry, dark matter and vector-like fermions is investigated. In this scenario an asymmetry generated through baryogenesis or leptogenesis (in the vector-like matter sector) connects the baryon asymmetry to the dark matter density. We present explicit renormalizable models where this connection occurs. These models have asymmetric dark matter and a significant invisible Higgs decay width to dark matter particles is possible. We refer to this type of scenario as the vector-like portal. In some asymmetric dark matter models there are potential naturalness issues for the low energy effective theory. We address that issue in themodels we consider by starting with a Lagrangian that is the most general renormalizable one consistent with the gauge (and discrete) symmetries and showing the low energy effective theory automatically has the required form as a consequence of the symmetries of the full theory. We show that the mass of the dark matter candidate is predicted in these scenarios.

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Additional Information:© 2013 SISSA. Published for SISSA by Springer. Received: March 27, 2013; Accepted: May 4, 2013; Published: May 17, 2013. We thank J. Arnold and C. Cheung for discussions. P.F.P. thanks CALTECH for the great hospitality. The work of M.B.W. was supported in part by the U.S. Department of Energy under contract No. DE-FG02-92ER40701 and by the Gordon and Betty Moore Foundation.
Group:Caltech Theory, Moore Center for Theoretical Cosmology and Physics
Funding AgencyGrant Number
Department of Energy (DOE)DE-FG02-92ER40701
Gordon and Betty Moore FoundationUNSPECIFIED
Subject Keywords:Beyond Standard Model; Cosmology of Theories beyond the SM
Issue or Number:5
Record Number:CaltechAUTHORS:20130904-132659017
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:41086
Deposited By: Tony Diaz
Deposited On:04 Sep 2013 21:42
Last Modified:10 Nov 2021 04:25

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