Search for dissertations about: "Jan Conrad"
Showing result 16 - 20 of 23 swedish dissertations containing the words Jan Conrad.
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16. Cosmological Dark Matter and the Isotropic Gamma-Ray Background : Measurements and Upper Limits
Abstract : This thesis addresses the isotropic diffuse gamma-ray background, as measured by the Fermi gamma ray space telescope, and its implications for indirect detection of dark matter. We describe the measurement of the isotropic background, including also an alternative analysis method besides the one published by the Fermi-LAT collaboration. READ MORE
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17. Energy Calibration of the Tile L1Calo and Data Driven Estimation of Non-prompt $e$, $\mu$ and $\tau$ Background Using Data From the ATLAS Detector
Abstract : .... READ MORE
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18. Towards application of explicit likelihoods in inference for Dark Matter Direct Detection
Abstract : Despite the many empirical hints for the existence of Dark Matter in the Universe, Dark Matter has yet to be observed experimentally, be it directly through its scatterings in detectors, indirectly through its annihilation in the galaxy, or implicitly through its production and decay in particle colliders. Even though observations from astrophysics and cosmology placed constraints on the Dark Matter energy density and self-interaction cross section and with Standard Model particles, much about the nature of Dark Matter is still unknown, leaving much to the creativity of model builders. READ MORE
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19. Search for Gamma-ray Lines from Dark Matter with the Fermi Large Area Telescope
Abstract : Dark matter (DM) constitutes one of the most intriguing but so far unresolved issues in physics. In many extensions of the Standard Model of particle physics, the existence of a stable Weakly Interacting Massive Particle (WIMP) is predicted. The WIMP is an excellent DM particle candidate. READ MORE
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20. Observations of nearby Galaxy Clusters with the Fermi Large Area Telescope : Towards the first Gamma Rays from Clusters
Abstract : Galaxy clusters are the most massive bound systems known in the Universe and are believed to have formed through large scale structure formation. They host relativistic cosmic-ray (CR) populations and are gravitationally bound by large amounts of Dark Matter (DM), both providing conditions in which high-energy gamma rays may be produced either via CR interactions with the intracluster medium or through the annihilation or decay of DM particles. READ MORE
