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Origins of hidden sector dark matter II: collider physics

Cheung, Clifford and Elor, Gilly and Hall, Lawrence J. and Kumar, Piyush (2011) Origins of hidden sector dark matter II: collider physics. Journal of High Energy Physics, 2011 (3). Art. No. 85. ISSN 1029-8479.

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We consider a broad class of supersymmetric theories in which dark matter (DM) is the lightest superpartner (LSP) of a hidden sector that couples very weakly to visible sector fields. Portal interactions connecting visible and hidden sectors mediate the decay of the lightest observable superpartner (LOSP) into the LSP, allowing the LHC to function as a spectacular probe of the origin of hidden sector DM. As shown in a companion paper, this general two-sector framework allows only for a handful of DM production mechanisms, each of which maps to a distinctive window in lifetimes and cross-sections for the LOSP. In the present work we perform a systematic collider study of LOSP candidates and portal interactions, and for each case evaluate the prospects for successfully reconstructing the origin of DM at the LHC. If, for instance, DM arises from Freeze-Out and Decay, this may be verified if the LOSP is a bino or right-handed slepton decaying to the LSP through a variety of portal interactions, and with an annihilation cross-section within a narrow range. On the other hand, the Freeze-In mechanism may be verified for a complimentary set of LOSP candidates, and within a narrow range of LOSP lifetimes. In all cases, the LOSP is relatively long-lived on collider time scales, leading to events with displaced vertices. Furthermore, scenarios with a charged or colored LOSP are particularly promising.

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Additional Information:© The Author(s) 2011. This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited. Received: December 29, 2010. Accepted: March 10, 2011. Published: March 18, 2011. L.H. thanks Karsten Jedamzik, John March-Russell and Stephen West for useful discussions. This work was supported in part by the Director, Office of Science, Office of High Energy and Nuclear Physics, of the US Department of Energy under Contract DE-AC02-05CH11231 and by the National Science Foundation on grant PHY-0457315.
Funding AgencyGrant Number
Department of Energy (DOE)DE-AC02-05CH11231
Subject Keywords:Supersymmetry Phenomenology
Issue or Number:3
Record Number:CaltechAUTHORS:20190619-094158360
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Official Citation:Cheung, C., Elor, G., Hall, L.J. et al. J. High Energ. Phys. (2011) 2011: 85.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:96533
Deposited By: George Porter
Deposited On:19 Jun 2019 23:10
Last Modified:03 Oct 2019 21:23

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