Essays about: "Higgs cosmology"

Found 4 essays containing the words Higgs cosmology.

  1. 1. Quartic Higgs self-coupling at a 100 TeV pp collider

    University essay from Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation

    Author : Sebastian Grabowski; [2021]
    Keywords : Quartic Higgs self-coupling; Triple Higgs production; Future Circular Collider; FCC; MadGraph; MadAnalysis; Events selection; selection strategy; Physics and Astronomy;

    Abstract : We present a parton-level phenomenological study of triple-Higgs production at leading order in proton-proton collisions at a center-of-mass energy of 100 TeV with an integrated luminosity of 30 ab^-1. This study aims to estimate the prospects for measuring the signal hhh production observable at the Future Circular Collider. READ MORE

  3. 2. Higgs inflation

    University essay from Uppsala universitet/Teoretisk fysik

    Author : Erik Schildt; [2018]
    Keywords : inflation; Higgs inflation; nonminimal coupling; conformal transformation; Higgs cosmology; cosmology; higgs inflaton; inflaton;

    Abstract : In this project a recent model of inflation in which the Standard Model Higgs field with a nonminimal coupling to gravity takes on the role of the inflaton field is investigated. The tensor to scalar ratio, spectral index and the running of the spectral index  is calculated for a tree level analysis and compared with the Planck experiment. READ MORE

  4. 3. On the metastability of the Standard Model

    University essay from Uppsala universitet/Teoretisk fysik

    Author : Sebastian Baum; [2015]
    Keywords : Higgs; Standard Model; stability; metastability;

    Abstract : With the discovery of a particle consistent with the Standard Model (SM) Higgs at the Large Hadron Collider (LHC) at CERN in 2012, the final ingredient of the SM has been found. The SM provides us with a powerful description of the physics of fundamental particles, holding up at all energy scales we can probe with accelerator based experiments. READ MORE

  5. 4. Electroweak phase transitions in the two-Higgs-doublet model after the first LHC run

    University essay from Uppsala universitet/Högenergifysik

    Author : Johan Löfgren; [2015]
    Keywords : Beyond standard model; phase transition; cosmology; matter-antimatter asymmetry; two-Higgs-doublet model;

    Abstract : One of the main motivations to consider beyond standard model physics is the observed matter-antimatter asymmetry of our universe, since it cannot be explained by the standard model. In this thesis we study the two-Higgs-doublet model (2HDM) in order to test if there are regions of the parameter space of this model which are not yet excluded by experiment and which can explain the asymmetry by the process  of electroweak baryogenesis. READ MORE