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Showing result 1 - 5 of 93 swedish dissertations matching the above criteria.

2. 1. Supersymmetry vis-à-vis Observation : Dark Matter Constraints, Global Fits and Statistical Issues

   Author : Yashar Akrami; Joakim Edsjö; Lars Bergström; Roberto Trotta; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; supersymmetry; cosmology of theories beyond the Standard Model; dark matter; gamma rays; dwarf galaxies; direct detection; statistical techniques; scanning algorithms; genetic algorithms; statistical coverage; Astroparticle physics; Astropartikelfysik; Cosmology; Kosmologi; Astroparticle physics; Astropartikelfysik; teoretisk fysik; Theoretical Physics;

   Abstract : Weak-scale supersymmetry is one of the most favoured theories beyond the Standard Model of particle physics that elegantly solves various theoretical and observational problems in both particle physics and cosmology. In this thesis, I describe the theoretical foundations of supersymmetry, issues that it can address and concrete supersymmetric models that are widely used in phenomenological studies. READ MORE

4. 2. Phenomenological Studies on Supersymmetry and the Strong Force

   Author : Peter Skands; Teoretisk partikelfysik - Geonomgår omorganisation; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; R-parity violation; Physics; beam remnants; hadronisation; parton showers; underlying event; Supersymmetry; Fysik; QCD; Fysicumarkivet A:2004:Skands;

   Abstract : In this thesis, we first consider the phenomenology of R-parity violating supersymmetric extensions of the Standard Model. Specifically, a large number of Lepton and Baryon Number violating decays of sparticles to particles are implemented in the Pythia event generator. READ MORE

5. 3. Search for Supersymmetry with DELPHI, and preparation for ATLAS

   Author : Per Johansson; Kerstin Jon-And; Klas Hultqvist; Anna Lipniacka; Ritva Kinnunen; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; supersymmetry; particle physics; Elementary particle physics; Elementarpartikelfysik;

   Abstract : This thesis reports on searches for supersymmetric particles, in particular neutralinos, conducted with the DELPHI detector at the LEP accelerator at CERN. The searches were performed within the framework of the Minimal Supersymmetric Standard Model (MSSM), with R-parity conserved and gravity mediated supersymmetry breaking. READ MORE

6. 4. Search for Supersymmetry and Large Extra Dimensions with the ATLAS Experiment

   Author : Gabriele Bertoli; Christophe Clement; Martijn Mulders; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; ATLAS; CERN; large extra dimensions; supersymmetry; compressed; squark; neutralino; monojet; ADD; standard model; fysik; Physics;

   Abstract : The Large Hadron Collider is the most powerful particle accelerator built to date. It is a proton-proton and heavy ion collider which in 2015 and 2016 operated at an unprecedented center of mass energy of √s = 13 TeV. The Tile Calorimeter is the ATLAS hadronic calorimeter covering the central region of the detector. READ MORE

7. 5. Electromagnetic Calorimetry for the ATLAS Experiment and Studies of R-Parity Violating Supersymmetry

   Author : Christophe Clement; KTH; []
   Keywords : ATLAS; Large Hadron Collider; calorimeter; presampler; supersymmetry; R-parity violation; mSUGRA; MSSM;

   Abstract : .... READ MORE