Sökning: "the ATLAS experiment"

Visar resultat 21 - 25 av 71 avhandlingar innehållade orden the ATLAS experiment.

  1. 21. Searches for dark matter in association with top quarks with the ATLAS experiment

    Författare :Patrawan Pasuwan; Sara Strandberg; Christophe Clément; Steven Lowette; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; LHC; ATLAS; luminosity; track counting; dark matter; BSM; Physics; fysik;

    Sammanfattning : This thesis presents a search for dark matter with the ATLAS experiment using 139 fb−1 of pp collision data at √s = 13 TeV delivered by the LHC from 2015 to 2018. The search targets a simplified model where a spin-0 scalar or pseudoscalar mediator particle, decaying to a pair of dark matter particles, is produced in association with a pair of top quarks. LÄS MER

  3. 22. Studies of the barrel presampler for the ATLAS experiment

    Författare :Christophe Clément; KTH; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  4. 23. A search for leptoquarks with the ATLAS detector and hardware tracking at the High-Luminosity LHC

    Författare :Mikael Mårtensson; Richard Brenner; Anders Ryd; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Leptoquarks; Hough transform; LHC; ATLAS; HL-LHC; Particle physics; Particle tracking; Cluster finding; Trigger; Fysik med inriktning mot elementarpartikelfysik; Physics with specialization in Elementary Particle Physics;

    Sammanfattning : This thesis presents a search for pair-production of scalar leptoquarks, decaying into third-generation particles, using proton-proton collisions delivered by the Large Hadron Collider (LHC) and recorded by the ATLAS detector. It also presents the development of a hardware track trigger for the Phase-II upgrade of the ATLAS experiment. LÄS MER

  5. 24. Electromagnetic Calorimetry for the ATLAS Experiment and Studies of R-Parity Violating Supersymmetry

    Författare :Christophe Clement; KTH; []
    Nyckelord :ATLAS; Large Hadron Collider; calorimeter; presampler; supersymmetry; R-parity violation; mSUGRA; MSSM;

    Sammanfattning : .... LÄS MER

  7. 25. Search for beyond Standard Model physics with same-sign dileptons

    Författare :Anthony Hawkins; Partikel- och kärnfysik; ATLAS Collaboration; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Doubly Charge Higgs; Beyond Standard Model; LHC; ATLAS; TRT; Same-sign leptons; Fysicumarkivet A:2014:Hawkins;

    Sammanfattning : An introduction into the theory and experimental background of particle physics and the ATLAS detector is given. The transition radiation tracker (TRT) which is vital to the particle tracking and identification is then described giving particular creedence to the calibration. The automation of this calibration is explained. LÄS MER