Search for dissertations about: "quantum chromodynamics"

Showing result 1 - 5 of 20 swedish dissertations containing the words quantum chromodynamics.

  2. 1. Scattering Amplitudes in Supersymmetric Quantum Chromodynamics and Gravity

    Author : Gregor Kälin; Henrik Johansson; Lance J. Dixon; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Scattering Amplitudes; Supersymmetric Gauge Theory; Supergravity; Quantum Chromodynamics; Physics and Astronomy specializing in Theoretical Physics; Fysik och astronomi med inriktning mot teoretisk fysik;

    Abstract : Quantum field theory is a theoretical framework for the description of nature in terms of fundamental particles, fields and their interactions. In the quantum regime, elementary scattering processes are observables in many experiments and studied in theoretical physics. READ MORE

  4. 2. The colour of gluon interactions : Studies of Quantum Chromodynamics in soft and hard processes

    Author : Nicuşor Tîmneanu; Jochen Bartels; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik; Physics; Fysik; Fysik; Physics;

    Abstract : Quantum Chromodynamics (QCD) is the theory of the strong interaction, one of the fundamental forces of nature. The interactions between quarks are mediated by gluons, which are the colour-charged gauge fields in QCD. READ MORE

  5. 3. Interplay between soft and hard processes in quantum chromodynamics

    Author : Anders Edin; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Radiation sciences; Strålningsvetenskap; Radiation biology; Strålningsbiologi; högenergifysik; High Energy Physics;

    Abstract : In QCD, the theory of strong interactions, hard processes with large momentum transfers can be calculated using perturbation theory, while soft processes with small momentum transfers are poorly understood. In this thesis, phenomenological models of soft and hard QCD processes are developed and tested. READ MORE

  6. 4. Quantum chromodynamics and colour singlet exchange in high energy interactions

    Author : Rikard Enberg; Gunnar Ingelman; W. James Stirling; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik; Physics; Fysik; Fysik; Physics;

    Abstract : Quantum chromodynamics (QCD) is the fundamental theory in elementary particle physics that describes the strong interaction in terms of exchanges of force-carrying, colour-charged particles known as gluons. Although well-established through experimental verifications, there are fundamental unsolved problems in the theory. READ MORE

  7. 5. Production of strangeness in partonic interactions at the LHC

    Author : Oliver Matonoha; Partikel- och kärnfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; quantum chromodynamics; quark-gluon plasma; neutral strange particles; small systems; transverse spherocity; underlying event; Fysicumarkivet A:2023:Matonoha;

    Abstract : The strong interaction is responsible for nearly all observable baryonic matter in the Universe. Quantum Chromodynamics, which describes interactions between quarks and gluons, however, cannot be solved analytically in the non-perturbative regime, involving low momentum transfers. READ MORE