Search for dissertations about: "Astropartikelfysik"

Showing result 21 - 25 of 60 swedish dissertations containing the word Astropartikelfysik.

  2. 21. Cosmological Dark Matter and the Isotropic Gamma-Ray Background : Measurements and Upper Limits

    Author : Alexander Sellerholm; Jan Conrad; Karl Mannheim; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; dark matter theory; dark matter simulations; dark matter experiments; isotropic gamma-ray background; Fermi gamma-ray space telescope; Astroparticle physics; Astropartikelfysik; teoretisk fysik; Theoretical Physics;

    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

  4. 22. Dark matter in and around stars

    Author : Sofia Sivertsson; Tommy Ohlsson; Steen Hansen; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Dark matter; early universe; Astroparticle physics; Astropartikelfysik;

    Abstract : There is by now compelling evidence that most of the matter in the universe is in the form of dark matter, a form of matter quite different from the matter we experience in every day life. The gravitational effects of this dark matter have been observed in many different ways but its true nature is still unknown. READ MORE

  5. 23. Propagation of cosmic rays in the galaxy and their measurements at very high energies with LORA

    Author : Satyendra Thoudam; The Netherlands Radboud University Nijmegen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Astroparticle Physics; Astropartikelfysik;

    Abstract : .... READ MORE

  6. 24. A search for solar dark matter with the IceCube neutrino telescope

    Author : Gustav Wikström; Klas Hultqvist; John Carr; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Dark matter; neutrinos; neutrino telescopes; IceCube; Astroparticle physics; Astropartikelfysik; fysik; Physics;

    Abstract : Dark matter particles in the form of supersymmetric Weakly Interacting Massive Particles (WIMPs) could accumulate in the centre of the Sun because of gravitational trapping. Pair-wise annihilations of WIMPs could create standard model particles out of which neutrinos could reach the Earth. READ MORE

  7. 25. Accelerators for Physics Experiments : From Diagnostics and Control to Design

    Author : Elena Wildner; Thomas Lindblad; Mikael Eriksson; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Astroparticle physics; Astropartikelfysik;

    Abstract : This thesis develops techniques of control-methods, optimization, and diagnostics of accelerator equipment and the produced particle beams with emphasis on the Large Hadron Collider (LHC) project at CERN. From a solid knowledge of the characteristics of the manufactured accelerator equipment gained from in-depth measurements and analysis of measured data, a link to an enhanced equipment design can be made. READ MORE