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IDM2010

26–30 juil. 2010
Montpellier 2 University
Fuseau horaire Europe/Paris

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Session

Parallel session : Dark Matter Candidates 2

29 juil. 2010, 13:40
Amphithéatre Dumontet (Montpellier 2 University)

Amphithéatre Dumontet

Montpellier 2 University

Place Eugene Bataillon, 34095 Montpellier Cedex 5 FRANCE

Documents de présentation

Aucun document.

  1. 60. New Signatures of WIMPless Dark Matter
    Jason Kumar (University of Hawaii)
    29/07/2010 13:40
    Dark Matter Candidates
    Talk
    The recently proposed WIMPless dark matter scenario provides a dark matter candidate which can have a wide range of possible masses, while still retaining the naturally correct thermal relic density of the WIMP scenario. This scenario leads to possible detection signals which are quite different from those usually expected of WIMPs. We review the WIMPless scenario, and discuss...
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  2. 119. The Sommerfeld Enhancement for Inelastic Dark Matter
    Dr Tracy Slatyer (Harvard University)
    29/07/2010 14:00
    Talk
    Recently measured excesses in electron and positron cosmic rays have motivated models of dark matter with a velocity-dependent Sommerfeld enhancement to the annihilation rate. These models frequently feature nearly-degenerate excited states for the dark matter; such excited states may also furnish explanations for the DAMA/LIBRA annual modulation and INTEGRAL 511 keV line. I will present...
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  3. 138. Dark Matter that can form Dark Stars
    Prof. Hyung Do Kim (Seoul National University)
    29/07/2010 14:20
    Talk
    The first stars to form in the Universe may be powered by the annihilation of weakly interacting dark matter particles. These so-called dark stars, if observed, may give us a clue about the nature of dark matter. Here we examine which models for particle dark matter satisfy the conditions for the formation of dark stars. We find that in general models with thermal dark matter lead to the...
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  4. 143. Light neutralino DM in light Higgs scenario related with the CoGeNT, DAMA/LIBRA, and CDMS II results
    Dr Seodong Shin (Seoul National University)
    29/07/2010 14:40
    Dark Matter Candidates
    Talk
    Recently, the CoGeNT collaboration reported the WIMP candidate signal events exceeding the expected backgrounds where light and strongly coupled WIMP models are supported. Motivated by this issue, we analyze a light neutralino dark matter scenario with a light CP-even Higgs mediation in the elastic scattering process, which provides the proper mass and direct detection cross section of the...
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  5. 98. A new vision of the inert doublet model of dark matter
    Mlle Laura Lopez Honorez (Universidad Autonoma de Madrid)
    29/07/2010 15:00
    Talk
    Dark matter annihilations of into 3 body final states are usually neglected in the computation of the dark matter abundance. It has however been recently shown that those kind of processes can significantly affect its relic density. I will focus on the Inert Doublet Model, which is a minimal extension of the standard Model including a weakly interacting scalar dark matter candidate, the inert...
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  6. 48. keV sterile neutrino Dark Matter in gauge extensions of the Standard Model
    Dr Fedor Bezrukov (MPI für Kernphysik)
    29/07/2010 15:20
    Dark Matter Candidates
    Talk
    It is known, that a keV scale sterile neutrino is a good Warm Dark Matter (WDM) candidate. We study how this possibility could be realised in the context of gauge extensions of the Standard Model (SM). The naive expectation leads to large thermal overproduction of sterile neutrinos in this setup. However, we find that it is possible to use out-of-equilibrium decay of the other right-handed...
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