Sökning: "Alps"

Visar resultat 1 - 5 av 21 avhandlingar innehållade ordet Alps.

  1. 1. 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

  3. 2. Marine oolites as proxies for palaeoenvironmental reconstructions during extinction events

    Författare :Ingrid Urban; Berggrundsgeologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ooids; Permian-Triassic boundary; Triassic-Jurassic Boundary; Arabian Platform; Southern Alps; palaeoenvironmental reconstruction;

    Sammanfattning : At present time, it has been stated that “Human activities, principally through emissions of greenhouse gases, have unequivocally caused global warming, with global surface temperature reaching 1.1°C above 1850–1900 in 2011–2020”. LÄS MER

  4. 3. Chemical and isotopic records of polycyclic histories in a subducted continental crust (Dora-Maira Massif, Western Alps)

    Författare :Francesco Nosenzo; Paola Manzotti; Alasdair Skelton; Charlotte Möller; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Subduction; continental crust; polycyclic; garnet; metamorphic petrology; Geology; geologi;

    Sammanfattning : At convergent plate margin, part of the continental crust can be subducted and exhumed. During continental subduction a pre-existing crust is reworked. Remnants of an older orogen are recycled and subjected to (ultra)-high-pressure metamorphism. LÄS MER

  5. 4. Astrophysical probes of axionlike particles

    Författare :Eike Christoph Ravensburg; M. C. David Marsh; Frank Wilczek; Joerg Jaeckel; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; astroparticle physics; axions; supernovae; physics beyond the standard model; dark matter; Theoretical Physics; teoretisk fysik;

    Sammanfattning : This thesis is a contribution to the search for new fundamental physics in the form of axionlike particles (ALPs). ALPs are relatively light and feebly interacting particles that are part of many theories extending the Standard Model of particle physics, e.g. LÄS MER

  7. 5. Constraining the Dark Matter Parameter Space

    Författare :Sunniva Jacobsen; Katherine Freese; Ilias Cholis; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Theoretical Physics; teoretisk fysik;

    Sammanfattning : The nature of dark matter (DM) is one of the greatest mysteries of modern physics. Itmakes up 25% of the total energy-matter content in the Universe, and is essential forexplaining the large-scale structures we observe in the Universe. Little is known aboutthe nature of dark matter, and the number of possible theories is vast. LÄS MER