Sökning: "Gluons"

Visar resultat 11 - 15 av 20 avhandlingar innehållade ordet Gluons.

  1. 11. The interplay between quark and hadronic degrees of freedom and the structure of the proton

    Författare :Hazhar Ghaderi; Stefan Leupold; Gunnar Ingelman; Thomas Gutsche; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : We study the low-energy sector of the strong interaction which is the least understood part of the Standard Model, the theory that describes the interactions of all known particles. The ideal particles for this study are the proton and the neutron, collectively called the nucleon. LÄS MER

  2. 12. Multiparticle Production in Strong Interactions

    Författare :Fredrik Söderberg; Centrum för miljö- och klimatvetenskap (CEC); []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Hadronisation; QCD; Bose-Einstein correlations; Elementary particle physics; Elementarpartikelfysik; quantum field theory; String fragmentation; kvantfältteori; Fysicumarkivet A:2003:Söderberg;

    Sammanfattning : An alternative formulation of the Lund fragmentation model for string states without gluons is presented. It is shown that the fragmentation process can be factorised into a product of transition operators with well-defined eigenfunctions and corresponding eigenvalues. LÄS MER

  3. 13. Developments for the FPGA-Based Digitiser in the PANDA Electromagnetic Calorimeters

    Författare :Markus Preston; Per-Erik Tegnér; Samuel Silverstein; Pawel Marciniewski; Allan Hallgren; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; PANDA; calorimeter; FPGA; single event upset; Geant4; Monte Carlo; pile-up; feature extraction; fysik; Physics;

    Sammanfattning : The strong interaction between quarks and gluons is one of the fundamental interactions described by the standard model of particle physics. Systems of quarks bound together by the strong interaction are known as hadrons, of which the proton and the neutron are the most common examples. LÄS MER

  4. 14. WIMP searches in an Effective Field Theory Framework from XENON1T to XENONnT

    Författare :Vasile Cristian Antochi; Conrad Jan; Alfredo Davide Ferella; Samuel Silverstein; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; WIMP; Dark Matter; EFT; Chiral EFT; Direct Detection; PMT testing; fysik; Physics;

    Sammanfattning : Observations from cosmology and astronomy suggest that most of the matter in the Universe is comprised of dark matter. In this thesis the evidence for dark matter and the possible candidates are explored, focusing on the Weakly Interacting Massive Particles (WIMPs) hypothesis. LÄS MER

  5. 15. The Shape of Strangeness: Transverse Spherocity and Underlying Event studies of φ and its relation to Ξ in √s = 13 TeV pp collisions

    Författare :Adrian Nassirpour; Partikel- och kärnfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; LHC; ALICE; Quark-Gluon Plasma; small systems; pp collisions; underlying event; event-shape engineering; transverse activity; strangeness enhancement; resonance production; Fysicumarkivet A:2022:Nassirpour;

    Sammanfattning : Through ultrarelativistic particle collisions at the LHC, it is possible to deconfine quarks and gluons. This deconfinement gives rise to a strongly interacting medium, referred to as the Quark-Gluon Plasma (QGP). LÄS MER