Sökning: "neutrino"

Visar resultat 31 - 35 av 80 uppsatser innehållade ordet neutrino.

  1. 31. Neutrino oscillations at very high energy/matter density

    Master-uppsats, KTH/Fysik

    Författare :Mathilde Guillaud; [2020]
    Nyckelord :Theoretical Physics; Neutrino Oscillations; Astrophysical Neutrinos; Teoretisk fysik; Neutrinooscillationer; Astrofysiska neutriner;

    Sammanfattning : Neutrino oscillations in matter can be studied in different regimes, depending on the energy of the incoming neutrinos and the matter density of the medium. In this thesis we investigate neutrino oscillations in dense matter at very high energy (TeV-PeV range), taking into account the absorption that the neutrinos may undergo in such dense media. LÄS MER

  3. 32. Finite-dimensional PT-symmetric Hamiltonians with an application to neutrino oscillations

    Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI)

    Författare :Alexander Fagerlund; Chistopher Ekman; [2020]
    Nyckelord :;

    Sammanfattning : In this report, we first briefly summarize Hermitian quantum mechanics before moving on to the non-Hermitian case. We then review PT-symmetric quantum mechanics with a focus on finite-dimensional systems, and include a novel generalization of a perturbative calculation of the C-operator. LÄS MER

  4. 33. Dark Matter – Direct Detection and Capture in the Sun

    Master-uppsats, KTH/Fysik

    Författare :Erika Lind; [2020]
    Nyckelord :Dark matter; direct detection; indirect detection; solar capture; inelastic dark matter; Mörk materia; direkt detektion; indirekt detektion; solinfångning; inelastisk mörk materia;

    Sammanfattning : Dark matter has been inferred from various observations such as in galaxy clusters, flat galactic rotation curves, gravitational lensing measurements and the cosmic microwave background. Despite overwhelming observational evidence and ongoing searches, a clear signal of dark matter has not yet been detected. LÄS MER

  5. 34. Kosmiska Neutriner

    Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI)

    Författare :Lara Mohatadi; Rasoul Lasek; [2020]
    Nyckelord :;

    Sammanfattning : Neutrinoobservationer kan ge mycket information om vad som händer ute i rymden. Den observationen och studien som ger den mest konkreta informationen är smaksammansättningar av neutriner som når jorden efter att den propagerat i rymden från dess källa. LÄS MER

  7. 35. A search for a prompt atmospheric muon neutrino flux in the northern hemisphere using data releases from IceCube

    L3-uppsats, Uppsala universitet/Högenergifysik

    Författare :Marcus Haberland; [2020]
    Nyckelord :IceCube; flux; neutrinos; neutrino; muon neutrinos; muon neutrino; prompt; astrophysical; student project; contribution; fitting;

    Sammanfattning : The IceCube Neutrino Observatory is a cubic kilometre scale detector for high-energy neutrinos above hundreds of GeV produced in Earth’s atmosphere as well as outside our solar system whenever particles are accelerated to ultra-relativistic energies. The prompt atmospheric contribution is a result of the creation of heavy mesons with charm components in the atmosphere. LÄS MER