Sökning: "Vector mediator"

Hittade 4 uppsatser innehållade orden Vector mediator.

  1. 1. Complementarity of high energy and high intensity experiments for dark photon benchmarks

    Master-uppsats, Lunds universitet/Partikel- och kärnfysik; Lunds universitet/Fysiska institutionen

    Författare :Joshua Greaves; [2022]
    Nyckelord :Dark matter; LDMX; Dark photon; Complementarity; Snowmass; Relic density; Thermal relic; Relic abundance; Cross section; Constraints; Limits; Minimal models; Energy frontier; Intensity frontier; Madgraph; Madanalysis; Vector mediated; Physics and Astronomy;

    Sammanfattning : Physical phenomena that are unexplained by the Standard Model (SM) of particle physics, are the subject of the area of research known as physics Beyond the Standard Model (BSM). BSM physics contains many Dark Matter (DM) theories which have emerged; from particles such as axions, neutrinos, and Weakly Interacting Massive Particles (WIMPs), to primordial black holes and others. LÄS MER

  3. 2. Signal background interference effects in lepton trident events with a new low mass mediator

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

    Författare :Patricia Andrea Gutiérrez García; [2020]
    Nyckelord :dark matter; pythia; matrix element corrections; LDM; Dire; Madgraph; dark photons; Physics and Astronomy;

    Sammanfattning : In this project we present a phenomenological study of signal to background interference effects in leptonic tridents produced in parton showers. The interference effects are introduced by linking matrix element corrections of a kinetically mixed dark photon model to the parton shower Dire. LÄS MER

  4. 3. Study of Dark Matter Models in Astrophysics and Particle Physics

    Master-uppsats, Lunds universitet/Partikel- och kärnfysik; Lunds universitet/Fysiska institutionen

    Författare :Isabelle John; [2019]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : From astrophysical and cosmological observations, it is known that most of the matter in the Universe is dark. This matter could be explainable by new particles, not included in the Standard Model of Particle Physics. LÄS MER

  5. 4. Search for Dark Matter in the Upgraded High Luminosity LHC at CERN : Sensitivity of ATLAS phase II upgrade to dark matter production

    Master-uppsats, Linköpings universitet/Institutionen för fysik, kemi och biologi; Linköpings universitet/Tekniska högskolan

    Författare :Sven-Patrik Hallsjö; [2014]
    Nyckelord :ATLAS; Beyond standard model physics; CERN; Dark matter; Effective operator; Elementary particle physics; High energy physics; Mono-jet analysis; Vector mediator; WIMPS;

    Sammanfattning : The LHC at CERN is now undergoing a set of upgrades to increase the center of mass energy for the colliding particles to be able to explore new physical processes. The focus of this thesis lies on the so called phase II upgrade which will preliminarily be completed in 2023. LÄS MER