Kaluza-Klein Dark Matter: Direct Detection vis-a-vis LHC

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We explore the phenomenology of Kaluza-Klein (KK) dark matter in very general models with universal extra dimensions (UEDs), emphasizing the complementarity between high-energy colliders and dark matter direct detection experiments. In models with relatively small mass splittings between the dark matter candidate and the rest of the (colored) spectrum, the collider sensitivity is diminished, but direct detection rates are enhanced. UEDs provide a natural framework for such mass degeneracies. We consider both 5-dimensional and 6-dimensional non-minimal UED models, and discuss the detection prospects for various KK dark matter candidates: the KK photon {gamma}{sub 1} (5D) the KK Z-boson Z{sub 1} ... continued below

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5 pages

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Arrenberg, Sebastian; Baudis, Laura; U., /Zurich; Kong, Kyoungchul; /Fermilab; Matchev, Konstantin T. et al. November 1, 2008.

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We explore the phenomenology of Kaluza-Klein (KK) dark matter in very general models with universal extra dimensions (UEDs), emphasizing the complementarity between high-energy colliders and dark matter direct detection experiments. In models with relatively small mass splittings between the dark matter candidate and the rest of the (colored) spectrum, the collider sensitivity is diminished, but direct detection rates are enhanced. UEDs provide a natural framework for such mass degeneracies. We consider both 5-dimensional and 6-dimensional non-minimal UED models, and discuss the detection prospects for various KK dark matter candidates: the KK photon {gamma}{sub 1} (5D) the KK Z-boson Z{sub 1} (5D) and the spinless KK photon {gamma}{sub H} (6D). We combine collider limits such as electroweak precision data and expected LHC reach, with cosmological constraints from WMAP and the sensitivity of current or planned direct detection experiments. Allowing for general mass splittings, we show that neither colliders, nor direct detection experiments by themselves can explore all of the relevant KK dark matter parameter space. Nevertheless, they probe different parameter space regions and the combination of the two types of constraints can be quite powerful. For example, in the case of {gamma}{sub 1} in 5D UEDs the relevant parameter space will be almost completely covered by the combined LHC and direct detection sensitivities expected in the near future.

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5 pages

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  • To appear in the proceedings of IDM 2008: 7th International Workshop on the Identification of Dark Matter 2008, Stockholm, Sweden, 18-22 Aug 2008

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  • Report No.: FERMILAB-CONF-08-591-T
  • Grant Number: AC02-07CH11359
  • Office of Scientific & Technical Information Report Number: 947215
  • Archival Resource Key: ark:/67531/metadc899850

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  • November 1, 2008

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  • Sept. 27, 2016, 1:39 a.m.

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  • Dec. 5, 2016, 10:06 p.m.

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Arrenberg, Sebastian; Baudis, Laura; U., /Zurich; Kong, Kyoungchul; /Fermilab; Matchev, Konstantin T. et al. Kaluza-Klein Dark Matter: Direct Detection vis-a-vis LHC, article, November 1, 2008; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc899850/: accessed October 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.