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This document discusses supersymmetric dark matter and its potential detection by the IceCube neutrino observatory. It introduces the neutralino as a dark matter candidate particle arising from supersymmetry. Neutralinos could accumulate in celestial bodies like the Sun due to gravitational interactions and weak/gravitational forces. Their annihilation could produce neutrino signals detectable by IceCube. The document outlines scans of the parameter space of the MSSM-25 supersymmetric model to identify regions favored by dark matter relic density and predict event rates and likelihoods for IceCube. The goal is to interpret any neutrino signals IceCube detects in terms of supersymmetric dark matter models.

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Supersymmetric Dark Matter in IceCube Hamish Silverwood Department of Physics and Astronomy University of Canterbury Image Source: NASA/ESA MSc Supervisors: Jenni Adams and Anthony Brown
Rotational Velocity Radial Distance Image Source: Wikimedia and NASA/ESA Dark Matter
Candidates must be 1. Stable 2. Electrically Neutral 3. Uncoloured Image Source: Wikimedia and NASA/ESA Dark Matter
Supersymmetry Particles Sparticles Light Heavy R-Parity R-Parity PR = 1 PR = -1 R-Parity Conservation is necessary for Proton Stability.
Lightest Supersymmetric Particle
L S P
L LSP Particles S P PR = -1 PR = 1x1 =1
L LSP Particles S P PR = -1 PR = 1x1 =1
L Neutralino 1. Stable ~0 S 2. Electrically Neutral 3. Uncoloured 4. Interacts via Weak Force & P Gravity
Neutralinos are Dark Matter Candidates Image Source: NASA/ESA Dark Matter
Neutralino Accumulation
LSP Particles PR =(-1)x(-1) PR = 1x1 =1 =1
LSP Particles 僚 Neutrinos PR =(-1)x(-1) PR = 1x1 =1 =1
ICECUBE NEUTRINO OBSERVATORY
Detector Optical Module
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Minimally Supersymmetric Standard Model
M MSSM: 120 Free Parameters S S MSSM-25: 25 Free Parameters M
Scanning the MSSM-25 Parameter Space LSP Type LSP Mass Relic Density Capture Rate Annihilation Rate DarkSUSY Modifed by HS to run with 25 Parameters IceCube events, rates, and likelihoods
Scanning the MSSM-25 Parameter Space LSP Type LSP Mass Relic Density Capture Rate Annihilation Rate DarkSUSY Modifed by HS to run with 25 Parameters IceCube events, rates, and likelihoods Fitness Criteria is Relic Density; optimizing towards WMAP measurement.
Scanning the MSSM-25 Parameter Space
Scanning the MSSM-25 Parameter Space
Scanning the MSSM-25 Parameter Space
Scanning the MSSM-25 Parameter Space
Final Goal of Parameter Scans IceCube Event Simulations
Final Goal of Parameter Scans IceCube Event Simulations
The Gritty Details Monte Carlo methods used to scan parameter space. Currently running scans based on the VEGAS algorithm.
Conclusion SUSY supplies us with a Dark Matter candidate particle: the neutralino. IceCube can potentially detect the annihilation of these neutralinos in the Sun. Scans of the MSSM-25 parameter space will help us interpret results from IceCube.
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16.00 o10 h silverwood