Sökning: "neutrino decay"

Visar resultat 11 - 15 av 19 avhandlingar innehållade orden neutrino decay.

  1. 11. Search for New Scalar Particles with ATLAS

    Författare :Stefio Yosse Andrean; Christophe Clement; Sara Strandberg; Markus Klute; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Large Hadron Collider; ATLAS; Standard Model; Higgs; supersymmetry; calorimeter; Physics; fysik;

    Sammanfattning : The Large Hadron Collider (LHC) is currently the most powerful particle accelerator ever built. It accelerates protons and collides them at the center of mass energy of √s = 13 TeV. LÄS MER

  3. 12. Investigation of GaAs structures for microstrip detectors

    Författare :Valery Chmill; KTH; []
    Nyckelord :;

    Sammanfattning : The performance of Gallium Arsenide p-i-n detectors afterneutron irradiation has been studied. The detectors have beenirradiated with » 6 MeV neutrons at various neutronfluences up to approximately 6 ¢ 1014 n/cm2, protons andmixed beam up to 1015 p/cm2. LÄS MER

  4. 13. Axionlike particles, quantum loops, and supernovae : The role of quantum loop corrections for astrophysical ALPs

    Författare :Eike Christoph Müller; David Marsh; Frank Wilczek; Bo Sundborg; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Theoretical Physics; teoretisk fysik;

    Sammanfattning : In this thesis the quantum field theory and astrophysical phenomenology of axionlike particles (ALPs) are studied. The effective field theory of ALPs is reviewed with a special focus on quantum loops, the renormalization group equations, and the equivalent forms of the interaction between ALPs and fermions. LÄS MER

  5. 14. The fundamental structure of matter

    Författare :Johan Hansson; Luleå tekniska universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fysik; Fysik;

    Sammanfattning : The subject of this thesis is "the fundamental structure of matter, that is, the quest of understanding the deepest level of the physical world, and the interactions relevant at that level. The hope is that, as one goes deeper, the laws are going to be simpler, not necessarily in mathematical terms, but in conceptual terms. LÄS MER

  7. 15. New atomic masses related to fundamental physics measured with SMILETRAP

    Författare :Szilárd Nagy; Reinhold Schuch; Gunter Werth; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Penning Trap; mass spectrometry; Atomic physics; Atomfysik;

    Sammanfattning : This thesis describes the recent improvements of the SMILETRAP Penning trap mass spectrometer and a number of interesting high precision mass measurements, which have been performed using the improved apparatus, and are relevant in todays fundamental physics problems. The mass of the hydrogen-like 24,26Mg ions as well as the masses of the hydrogen- and lithium-like 40Ca ions are presented in this work that are indispensable input values when evaluating g-factor measurements of the bound electron. LÄS MER