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    Supersymmetric Dark Matter in IceCube

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    Author
    Silverwood, Hamish George Miles
    Date
    2012
    Permanent Link
    http://hdl.handle.net/10092/6927
    Thesis Discipline
    Physics
    Degree Grantor
    University of Canterbury
    Degree Level
    Masters
    Degree Name
    Master of Science

    The Minimally Supersymmetric Standard Model (MSSM) provides us with a WIMP dark matter candidate particle, the neutralino. Neutralinos from the dark matter halo can potentially become captured by the sun and concentrated in the core, where they can undergo self-annihilation and so produce a distinct neutrino signal. The IceCube Neutrino Observatory has the potential to detect this neutrino signal and thus give indirect evidence of the presence and properties of neutralino dark matter. Although the full, unconstrained MSSM has 105 parameters this can be reduced to 25 parameters by the application of physically motivated assumptions. Scans of this MSSM-25 parameter space are conducted using the DarkSUSY software package and an adaptive scanning technique based on the Monte-Carlo VEGAS algorithm. The IceCube exclusion confidence level is then calculated for a set of points produced by these scans. Results indicate that the detection capability of IceCube exceeds that of current direct detection methods in certain regions of the parameter space. The use of a 25 dimensional parameter space reveals that there are new regions of observables with high exclusion confidence levels compared to earlier simulations performed with a seven dimensional parameter space.

    Subjects
    supersymmetry
     
    MSSM
     
    neutralino
     
    dark matter
     
    IceCube
     
    neutrino
     
    DarkSUSY
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    • Science: Theses and Dissertations [3604]
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    https://canterbury.libguides.com/rights/theses

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