Sökning: "Gravity Theory"

Visar resultat 1 - 5 av 138 uppsatser innehållade orden Gravity Theory.

  1. 1. Gravitational Collapse of a Massless Scalar Field in a Theory of Minimally Modified Gravity

    Master-uppsats, KTH/Fysik

    Författare :Atabak Fathe Jalali; [2024]
    Nyckelord :Theoretical physics; astrophysics; modified gravity; minimally modified gravity; gravitational collapse; VCDM; scalar collapse; apparent horizon; numerical relativity; Teoretisk fysik; astrofysik; modifierad gravitation; minimalt modifierad gravitation; gravitationskollaps; VCDM; skalär kollaps; uppenbar horisont; numerisk relativitet;

    Sammanfattning : This thesis explores the spherically symmetric gravitational collapse of a massless scalar field in a minimally modified gravity theory denoted VCDM (V replaces $\Lambda$ in the $\Lambda$CDM abbreviation), a class of theories propagating the same degrees of freedom as general relativity at the expense of broken 4D diffeomorphism invariance. Numerical evolution of the equations of motion reveals that for small initial scalar profile amplitudes, no black hole forms from the collapse. LÄS MER

  3. 2. Språk, verklighet & medverkansläran – En granskning av gärningsmannaskapets innebörd

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Juridiska institutionen; Lunds universitet/Juridiska fakulteten

    Författare :Petronella Svensson Ahlberg; [2023]
    Nyckelord :Straffrätt; criminal law; Law and Political Science;

    Sammanfattning : When several individuals have been involved in a criminal act, the court allocates roles between perpetrators, instigators, and accomplices. Regarding the first role of responsibility, an individual may himself or jointly with others have carried out the criminal act, alternatively be considered the perpetrator. LÄS MER

  4. 3. Designing and evaluating distribution networks for luxury beds : A case study of Hästens Beds’ European distribution from the perspective of cost and delivery service

    Master-uppsats, Linköpings universitet/Logistik- och kvalitetsutveckling

    Författare :Sebastian Huss; Arvid Normann; [2023]
    Nyckelord :distribution; distribution network design; transport minimization; network structure; network optimization; decentralization; facility location; center of gravity;

    Sammanfattning : Hästens Beds is a Swedish luxury bed manufacturer, located in Köping, Sweden. They have a strong global presence, with Europe being the most mature and proven market. LÄS MER

  5. 4. Fiscal Effort and Internal Migration in Spain : A study of the determinants of internal migration with special attention to the difference in taxes between autonomous communities of Spain.

    Master-uppsats, Jönköping University/IHH, Nationalekonomi

    Författare :Sara Jimenez Nuñez; [2023]
    Nyckelord :internal migration; gravity model; tax effort; Spain.;

    Sammanfattning : This study examines the determinants of internal migration in Spain. It pays close attention to a key variable that has been little studied so far, taxes. That is, we analyze whether the difference in taxes between the autonomous communities of Spain is a determining factor for Spanish citizens when deciding to move. LÄS MER

  7. 5. Constraining the Higgs width in Higgs production associated with a top quark pair

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

    Författare :Benjamin Dahlén; [2023]
    Nyckelord :Higgs; width; cross section; on-shell; off-shell; invariant mass; Standard model; upper bound; Physics and Astronomy;

    Sammanfattning : In this thesis we study the width of the Higgs boson in the process pp → t ̄t 4l at LO using MadGraph5_aMC@NLO to generate the events. The contributions including the Higgs signal, continuum background and interference were considered in order to calculate the expected number of events in a broad range of four-lepton invariant masses. LÄS MER