Sökning: "dijet"

Visar resultat 6 - 10 av 10 uppsatser innehållade ordet dijet.

  1. 6. Feasibility of new Dark Matter search at ATLAS

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

    Författare :Peter Stratmann; [2017]
    Nyckelord :Dark Matter; ATLAS; Trigger-Level Analysis; Calibration; Level 1; Mediator; Jets; Physics and Astronomy;

    Sammanfattning : This thesis examines the idea of calibrating Level 1 jets. These are used in the Trigger-Level Analysis at the ATLAS in the search for a new mediator, in this case between Standard Model and Dark Matter particles. In the thesis, the idea to calibrate the Level 1 jets is investigated. LÄS MER

  3. 7. Trigger Algorithms and Monte Carlo Event Generation for Dijet Searches in ATLAS and Beyond

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

    Författare :Sebastian Murk; [2017]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : So far, the Standard Model (SM) has been very successful in describing non-gravitational interactions of fundamental particles. However, many of its theoretical and experimental shortcomings remain unresolved. LÄS MER

  4. 8. Search for new phenomena in low-mass dijet using trigger-level analysis

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

    Författare :Herjuno Nindhito; [2016]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : The recent upgrade of the Large Hadron Collider (LHC) benefits searches for new physics phenomena using multijet final states. The increased center-of-mass energy opens new possibilities to probe new physics at scales beyond the Tera-electron volt (TeV), especially in di-jet final states. LÄS MER

  5. 9. Searches for Low-Mass Dijet Resonances in Trijet Final States using Monte Carlo Samples

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

    Författare :Patrawan Pasuwan; [2016]
    Nyckelord :Dijet resonance; trijet final states; mass combination; sensitivity studies; composite quark model; simplifies dark matter mediator model; Physics and Astronomy;

    Sammanfattning : This thesis presents the prototype of a search for new phenomena that decay in two jets, in presence of an associated jet (three-jet or trijet final state). Mass combination studies are carried out to reconstruct dijet resonances in different mass regions. LÄS MER

  7. 10. Tagging of Boosted Top Quarks using Reclustered Jets

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

    Författare :Jakob Calvén; [2014]
    Nyckelord :High Energy Particle Physics; Jet Algorithms; Experimental Particle Physics; Boosted Top Quarks; Physics and Astronomy;

    Sammanfattning : The ability to identify boosted top quarks will be of great importance in searches for new physics at the LHC, as boosted tops play an important role in many scenarios of physics beyond the Standard Model. One top tagging algorithm that has been successfully used in the ATLAS collaboration is the HEPTopTagger, which exploits the clustering history of Cambridge/Aachen (C/A) jets to filter out everything but the core objects inside the jets in an attempt to identify those originating from top quark decay. LÄS MER