Search for dissertations about: "extra dimensions"

Showing result 11 - 15 of 56 swedish dissertations containing the words extra dimensions.

  2. 11. Searches for New Physics in Single Photon Events and a Search for Charginos at the DELPHI Experiment

    Author : Stefan Ask; Partikel- och kärnfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; quantum field theory; DELPHI; single photon events; LEP; chargino search; supersymmetry; extra dimensions; Elementary particle physics; non standard neutino interactions.; Elementarpartikelfysik; kvantfältteori; Fysicumarkivet A:2004:Ask;

    Abstract : A search for new physics using events with a single photon and missing energy has been made at the DELPHI experiment together with a search for charginos. The results were based on data collected up to and including the final year of 2000. READ MORE

  4. 12. The BIG ghost

    Author : Mikael von Strauss; Kjell Rosquist; Ariel Goobar; Edwin Langmann; Stockholms universitet; []
    Keywords : modified gravity; extra dimensions; cosmological constant;

    Abstract : In this thesis we present work done in an analysis of models of brane induced gravity. These are higher dimensional generalizations of Einstein's General relativity where our universe is considered as a brane in a higher dimensional bulk and where the gravitational dynamics on the brane is enhanced. READ MORE

  5. 13. Light from Dark Matter : Hidden Dimensions, Supersymmetry, and Inert Higgs

    Author : Michael Gustafsson; Lars Bergström; Steen Hannestad; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik; Theoretical Physics; teoretisk fysik;

    Abstract : Recent observational achievements within cosmology and astrophysics have lead to a concordance model in which the energy content in our Universe is dominated by presumably fundamentally new and exotic ingredients – dark energy and dark matter. To reveal the nature of these ingredients is one of the greatest challenges in physics. READ MORE

  6. 14. Phenomenological studies of dimensional deconstruction

    Author : Tomas Hällgren; Tommy Ohlsson; Stefan Antusch; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Dimensional deconstruction; higher-dimensional gauge theories; neu- trino mixing; neutrino oscillations; universal extra dimensions; ADD models; Ka- luza{Klein dark matter; Other physics; Övrig fysik;

    Abstract : In this thesis, two applications of dimensional deconstruction are studied. The first application is a model for neutrino oscillations in the presence of a large decon- structed extra dimension. In the second application, Kaluza{Klein dark matter from a latticized universal extra dimension is studied. The goal of these projects have been twofold. READ MORE

  7. 15. Dijet angular distributions in proton-proton collisions at root s = 7 TeV and root s = 14 TeV

    Author : Nele Boelaert; Partikel- och kärnfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; black holes; ATLAS; large extra dimensions; perturbative QCD; dijets; gravitational scattering; LHC; Jets; Fysicumarkivet A:2010:Boelaert;

    Abstract : Dijet angular distributions provide an excellent tool for looking at high transverse momentum parton interactions in order to study both QCD and new physics processes. With the Large Hadron Collider (LHC) recently brought into use, an unprecedented energy regime has opened up. ATLAS is one of the experiments at the LHC. READ MORE