Sökning: "quantum chromodynamics"

Visar resultat 11 - 15 av 22 uppsatser innehållade orden quantum chromodynamics.

  1. 11. Xi Production in pp Collisions at Different Multiplicity and Spherocity

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

    Författare :Martin Angelsmark; [2019]
    Nyckelord :Particle Physics Quark Gluon Plasma ALICE LHC CERN Xi Baryon Transverse Spherocity Multiplicity; Physics and Astronomy;

    Sammanfattning : The protons and neutrons that make up the atoms in our Universe are part of a larger group of particles called hadrons. Hadrons have an inner structure consisting of the elementary particles called quarks. The interaction of the quarks is described by the quantum field theory quantum chromodynamics. LÄS MER

  3. 12. Performance of jet subtraction in pPb and PbPb collisions, without collectivity

    Kandidat-uppsats, Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation; Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation

    Författare :Sebastian Grabowski; [2018]
    Nyckelord :heavy ion: scattering; Angantyr; underlying event; subtraction; jet: quenching; non-collectivity; stacking; jet: correlation; non-colliective; background; Physics and Astronomy;

    Sammanfattning : We investigated the performance of basic jet subtraction, by the utilization of jet reconstruction generally used at the Large Hadron Collider (LHC). This was done by studying Z-bosons, in the dielectron decay channel, and the associated jet correlation in pp, pPb and PbPb collisions, using datasets generated by the Monte Carlo generator PYTHIA8. LÄS MER

  4. 13. The 't Hooft model as a testing ground for Quantum Chromodynamics

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

    Författare :Felix Tellander; [2016]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : We study a 1+1 dimensional Yang-Mills model in the light-cone gauge (the ’t Hooft model). The colour group is SU (N ) and we study the limit N → ∞, the limit is taken such that g²N is kept constant. In this limit the only contributing diagrams are planar diagrams without gluon-gluon interactions. LÄS MER

  5. 14. The kaon electromagnetic mass difference in AdS/QCD

    Master-uppsats, Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation; Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation

    Författare :Jack Borthwick; [2016]
    Nyckelord :particle physics; AdS QCD; AdS CFT; kaon; electromagnetic mass difference; quantum field theory; Physics and Astronomy;

    Sammanfattning : In this thesis, a holographic model for quantum chromodynamics (QCD) is used to estimate the electromagnetic contribution to the kaon mass difference. The principal ideas of the model are inspired by the AdS/CFT correspondence, which is believed to be exact. LÄS MER

  7. 15. Chirally Symmetric Technicolor Model: A possible origin of the Higgs Boson

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

    Författare :Jacob Taxén; [2015]
    Nyckelord :standard model; higgs; techicolor; Physics and Astronomy;

    Sammanfattning : This thesis investigates a possible extension to the Standard Model: the Chirally Symmetric Technicolor Model. The motivation is to explain the origin of the electroweak interaction scale by introducing a new interaction. LÄS MER