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Asymmetric dark matter from a GeV hidden sector

Cohen, Timothy and Phalen, Daniel J. and Pierce, Aaron and Zurek, Kathryn M. (2010) Asymmetric dark matter from a GeV hidden sector. Physical Review D, 82 (5). Art. no. 056001. ISSN 1550-7998.

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Asymmetric dark matter (ADM) models relate the dark matter (DM) density to the baryon asymmetry, so that a natural mass scale for ADM is around a few GeV. In existing models of ADM, this mass scale is unexplained; here we generate this GeV scale for DM) from the weak scale via gauge kinetic mixing with a new Abelian dark force. In addition, this dark sector provides an efficient mechanism for suppressing the symmetric abundance of DM through annihilations to the dark photon. We augment this sector with a higher dimensional operator responsible for communicating the baryon asymmetry to the dark sector. Our framework also provides a DM candidate for gauge mediation models. It results in a direct detection cross section of interest for current experiments: σ_p ≲ 10^(−41) cm^2 for DM masses in the range 1–15 GeV.

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Additional Information:© 2010 The American Physical Society. (Received 17 June 2010; published 3 September 2010) We thank A. Adams, J. Terning, C. Csaki, M. Papucci, J. Thaler, T. Volansky, and I. Yavin for useful comments and discussions. This work was supported in part by NSF Career Grant No. NSF-PHY-0743315 (T. C., A. P.) and by DOE Grant No. DE-FG02-95ER40899 (A. P., D. P.).
Funding AgencyGrant Number
Department of Energy (DOE)DE-FG02-95ER40899
Issue or Number:5
Classification Code:PACS numbers: 95.35.+d, 11.30.Fs, 12.60.Jv
Record Number:CaltechAUTHORS:20190613-110921513
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:96375
Deposited By: George Porter
Deposited On:17 Jun 2019 15:27
Last Modified:03 Oct 2019 21:21

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