Sökning: "Luminosity"

Visar resultat 6 - 10 av 112 avhandlingar innehållade ordet Luminosity.

  1. 6. Hadronic Structure Measurements of the Photon by DELPHI at LEP II

    Författare :Andreas Nygren; Partikel- och kärnfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Elementarpartikelfysik; DELPHI; LEP; VSAT; luminosity; two-photon physics; cross section; double tag; bhabha; background; structure function; kvantfältteori; quantum field theory; Elementary particle physics; Fysicumarkivet A:2001:Nygren;

    Sammanfattning : This thesis is mainly an analysis of data taken by the VSAT detector in the DELPHI experiment at the LEP II collider at CERN. The analysis spans from 1998 to 2000, with a center of mass energy ranging from 189 to 206 GeV. LÄS MER

  3. 7. 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

  4. 8. Search for beyond Standard Model physics with high-pT leptons

    Författare :Oleksandr Viazlo; Partikel- och kärnfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; LHC; ATLAS; TRT; LUCID; Luminosity; Beyond Standard Model; Doubly Charged Higgs; Fysicumarkivet A:2017:Viazlo;

    Sammanfattning : This thesis covers four different topics related to the physics analysis in the ATLAS experiment that uses proton-proton collisions data provided by the Large Hadron Collider. The first topic is focused on the numerical simulation of the Transition Radiation Tracker which is one of the ATLAS tracking detectors. LÄS MER

  5. 9. Luminosity determination and simulation of the LUCID detector at the ATLAS experiment

    Författare :Jacob Groth-Jensen; Partikel- och kärnfysik; ATLAS Collaboration; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; LHC; LUCID; Luminosity determination; Performance study; ATLAS; Gauge boson production; Fysicumarkivet A:2010:Groth-Jensen;

    Sammanfattning : The aim of this thesis is to describe how the luminosity can be measured in the ATLAS experiment at the Large Hadron Collider. Luminosity is a fundamental quantity that is used in most physics studies at the LHC. For example in order to measure cross sections. LÄS MER

  7. 10. Spin-Orbit Maps and Electron Spin Dynamics for the Luminosity Upgrade Project at HERA

    Författare :Mari Berglund; KTH; []
    Nyckelord :electron polarization; luminosity upgrade; overlapping fields; spin rotators; numerical spin-orbit maps; spin diagnostics; unitary model;

    Sammanfattning : .... LÄS MER