Sökning: "universum utveckling"

Visar resultat 1 - 5 av 22 uppsatser innehållade orden universum utveckling.

  1. 1. Exploring electroweak symmetry breaking in the scale-invariant Two-Higgs-Doublet Model

    Master-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation

    Författare :Erik Rustas; [2023]
    Nyckelord :Two-Higgs-Doublet Models; 2HDM; Scale-invariance; Baryogenesis; BSM; Baryon Asymmetry; Coleman-Weinberg Potential; Theoretical Particle Physics; Physics and Astronomy;

    Sammanfattning : This thesis investigates the properties of a general scale-invariant Two-Higgs-Doublet Model and its phenomenological consequences with focus on the scalar sector. The concept suggests that introducing more CP-violation, both spontaneous and explicit, may make it possible to meet the Sakharov conditions and account for the Universe's baryon asymmetry. LÄS MER

  3. 2. On The Run: How Fast Runaway Stars Can Escape From Their Home Cluster?

    Kandidat-uppsats, Lunds universitet/Astronomi - Genomgår omorganisation

    Författare :Anna-Maria Söderman; [2022]
    Nyckelord :star cluster; runaway stars; velocity distribution; Physics and Astronomy;

    Sammanfattning : Galaxies contain a wide variety of star clusters with different properties. Each cluster is a possible source of runaway stars, which can be progenitors of supernovae in other parts of the galaxy than their home cluster. Considering runaway stars in galaxy simulations has shown to increase the galactic feedback. LÄS MER

  4. 3. On the (1/2,1/2) Representation of the Lorentz Group and the Discrete CPT Symmetries

    Kandidat-uppsats, Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation

    Författare :Nikolaj Skog Pirinen; [2021]
    Nyckelord :The Lorentz Group; Group Theory; Quantum Field Theory; CPT; Symmetry; Spinors; Representation Theory; Physics and Astronomy;

    Sammanfattning : This thesis derives the explicit form of the elements of the (1/2,1/2) representation of the Lorentz group, by actually performing a direct product of the chiral (1/2,0)- and (0,1/2)-representations. The Lorentz transformations of fourvectors are thereafter recovered from this direct-product representation, allowing the derivation of a transformation matrix between the fourvector- and direct product basis. LÄS MER

  5. 4. Centrifugal Turbopumps - Flow Physics and Modelling

    Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Carl Eriksson; Hampus Henåker; [2021]
    Nyckelord :Centrifugal Pumps; Rocket Science; Turbopumps; Two-Zone Model; Impeller; Vaneless Diffuser; Vaned Diffuser; Technology and Engineering;

    Sammanfattning : Choices made in the early stages of a design process are crucial. They dictate many of the limitations and freedoms the designer has in later stages of the design. Informed decisions are therefore crucial at this stage. LÄS MER

  7. 5. Isak Isakssons universum : Ursprung, utveckling och förnyelse hos en samtida keramiker i en skör tradition

    Kandidat-uppsats, Uppsala universitet/Konstvetenskapliga institutionen

    Författare :Alexandra Giertz; [2020]
    Nyckelord :ceramics; ceramist; crystalline glazes; handicraft; Isak Isaksson; keramik; keramiker; kristallglasyrer; konsthantverk; Isak Isakssson;

    Sammanfattning : The paper examines the work and production of Swedish ceramist Isak Isaksson (born 1949) from the aspects of emotional connection to materials, work processes, development and perceived meaning in relation to extraordinary craftmanship and the production of crystalline glazes. Isaksson has worked as a ceramist since the mid 1970s, starting with basic, functional stoneware goods but gradually moving towards the creation of art objects. LÄS MER