Sökning: "Exotic Higgs Boson"

Hittade 2 uppsatser innehållade orden Exotic Higgs Boson.

  1. 1. Optimization of event selection and fake background estimation in a search for heavy scalars in dilepton final states with the ATLAS detector

    Magister-uppsats, Lunds universitet/Partikelfysik; Lunds universitet/Fysiska institutionen

    Författare :Marius Burman Ingeberg; [2021]
    Nyckelord :Physics; Particle physics; ATLAS; Standard Model; CERN; LHC; Higgs boson; Exotic Higgs Boson; Dilepton final states; Optimization; Physics and Astronomy;

    Sammanfattning : The discovery of the Higgs boson h in 2012 further confirmed the remarkable accuracy of the Standard Model (SM). Despite this, some compelling excesses in multi-lepton final states were recorded in both major runs of the Large Hadron Collider (LHC). LÄS MER

  2. 2. Exotic Decays of a Vector-liketop Partner at the LHC

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Högenergifysik

    Författare :Alexander Skwarcan-Bidakowski; [2019]
    Nyckelord :Particle physics; Vector-like quarks; VLQ; Composite Higgs model; CHM; Top-partner; pseudo; Nambu-Goldstone boson; pNGB; NGB; ATLAS; LHC; CMS; Significance; Recast; CheckMate; CM; MadGraph; Pythia; Delphes; Detector; Analysis; Hierarchy Problem; Exotic; Decay; QFT; Quantum Field Theory; fermions; bosons; Jets; photons; leptons; 13 TeV; Missing Transverse Energy; momentum; hypothetical; selection criteria; Standard model; Signal; background; event; Higgs; Mechanism; Simulation; Confidence limit;

    Sammanfattning : An evaluation of how sensitive some ATLAS searches for new physics are to a new beyond standard model (BSM) vector-like quark (VLQ) and a pseudo Nambu-Goldstone boson (pNGB) scalar. This was done by simulating a signal containing these new particles and making a recast of it onto existing verified ATLAS searches for new physics at center-of-mass (CM) energy of 13 TeV (Run 2) at the Large Hadron Collider (LHC). LÄS MER