Sökning: "Madgraph"

Visar resultat 6 - 10 av 15 uppsatser innehållade ordet Madgraph.

1. 6. 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. 7. Quartic Higgs self-coupling at a 100 TeV pp collider

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

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

   Sammanfattning : 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. LÄS MER

4. 8. Di-Higgs Production in the Standard Model and Beyond

   Master-uppsats, Stockholms universitet/Fysikum

   Författare :Hanna Brännström; [2021]
   Nyckelord :ATLAS; CERN; Higgs; partikelfysik; di-Higgs;

   Sammanfattning : This thesis examines how the kinetic properties of pair-produced Higgs bosons depend on whether the process is mediated by particles in the Standard Model or a simplified supersymmetric model. The analysis is based on simulated data made using MadGraph. LÄS MER

5. 9. Simulation of Higgs boson pair production in Vector Boson Fusion at the LHC

   L3-uppsats, Uppsala universitet/Högenergifysik

   Författare :Daniela Romero; [2021]
   Nyckelord :Higgs boson; vbf; vector boson fusion; high energy physics; lhc; proton collision; madgraph; simulation;

   Sammanfattning : MadGraph5 is used to generate events with Higgs boson pairs from vector boson fusion (VBF) at leading-order (LO) and next-to-leading-order (NLO) accuracy in QCD. The simulations are used to compute fiducial cross-sections in proton-proton collisions at a centre-of-mass energy of 13 TeV, using several kinematic cuts on the outgoing jets, e.g. LÄS MER

7. 10. Towards Vertexing Studies of Heavy Neutral Leptons with the Future Circular Collider at CERN

   Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Högenergifysik

   Författare :Rohini Sengupta; [2021]
   Nyckelord :Particle Physics; CERN; Future Circular Collider; FCC-ee; Heavy Neutral Leptons; Long-lived particles; Displaced signatures;

   Sammanfattning : Heavy Neutral Leptons (HNLs) are the heavier counterparts of the light neutrinos of the Standard Model of particle physics. HNLs can simultaneously solve several of the problems the Standard Model cannot yet resolve, one example being that they provide a candidate for Dark Matter. LÄS MER